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Finding the Fourth Proportional to 5,644.76, 7,770.30 and 4,888.24

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Solution

The fourth proportional to 5,644.76, 7,770.30 and 4,888.24 is: 6,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.76 : 7,770.30 = 4,888.24 : x
  2. Step 2: Convert to fraction form
    5,644.76/7,770.30 = 4,888.24/x
  3. Step 3: Cross multiply
    5,644.76x = 7,770.30 × 4,888.24
  4. Step 4: Simplify right side
    5,644.76x = 37,983,091.27
  5. Step 5: Solve for x
    x = 37,983,091.27/5,644.76
  6. Step 6: Final answer
    x = 6,728.91

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Half scale
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Double scale
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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.