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Finding the Fourth Proportional to 5,921.64, 8,845.18 and 4,347.72

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Solution

The fourth proportional to 5,921.64, 8,845.18 and 4,347.72 is: 6,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.64 : 8,845.18 = 4,347.72 : x
  2. Step 2: Convert to fraction form
    5,921.64/8,845.18 = 4,347.72/x
  3. Step 3: Cross multiply
    5,921.64x = 8,845.18 × 4,347.72
  4. Step 4: Simplify right side
    5,921.64x = 38,456,365.99
  5. Step 5: Solve for x
    x = 38,456,365.99/5,921.64
  6. Step 6: Final answer
    x = 6,494.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.