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Finding the Fourth Proportional to 7,614.96, 10,508.13 and 4,257.60

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Solution

The fourth proportional to 7,614.96, 10,508.13 and 4,257.60 is: 5,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.96 : 10,508.13 = 4,257.60 : x
  2. Step 2: Convert to fraction form
    7,614.96/10,508.13 = 4,257.60/x
  3. Step 3: Cross multiply
    7,614.96x = 10,508.13 × 4,257.60
  4. Step 4: Simplify right side
    7,614.96x = 44,739,414.29
  5. Step 5: Solve for x
    x = 44,739,414.29/7,614.96
  6. Step 6: Final answer
    x = 5,875.20

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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.