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Finding the Fourth Proportional to 5,644.24, 7,789.10 and 3,160.24

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Solution

The fourth proportional to 5,644.24, 7,789.10 and 3,160.24 is: 4,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.24 : 7,789.10 = 3,160.24 : x
  2. Step 2: Convert to fraction form
    5,644.24/7,789.10 = 3,160.24/x
  3. Step 3: Cross multiply
    5,644.24x = 7,789.10 × 3,160.24
  4. Step 4: Simplify right side
    5,644.24x = 24,615,425.38
  5. Step 5: Solve for x
    x = 24,615,425.38/5,644.24
  6. Step 6: Final answer
    x = 4,361.16

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Find fourth proportional to 2,822.12, 3,894.55 and 1,580.12
Half scale
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Double scale
Find fourth proportional to 5,645.24, 7,790.48 and 3,161.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.