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Finding the Fourth Proportional to 45,472.32, 62,730 and 29,561.76

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Solution

The fourth proportional to 45,472.32, 62,730 and 29,561.76 is: 40,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,472.32 : 62,730 = 29,561.76 : x
  2. Step 2: Convert to fraction form
    45,472.32/62,730 = 29,561.76/x
  3. Step 3: Cross multiply
    45,472.32x = 62,730 × 29,561.76
  4. Step 4: Simplify right side
    45,472.32x = 1,854,409,204.80
  5. Step 5: Solve for x
    x = 1,854,409,204.80/45,472.32
  6. Step 6: Final answer
    x = 40,781.06

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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.