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Finding the Fourth Proportional to 53,287.80, 73,531.90 and 29,412.92

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Solution

The fourth proportional to 53,287.80, 73,531.90 and 29,412.92 is: 40,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,287.80 : 73,531.90 = 29,412.92 : x
  2. Step 2: Convert to fraction form
    53,287.80/73,531.90 = 29,412.92/x
  3. Step 3: Cross multiply
    53,287.80x = 73,531.90 × 29,412.92
  4. Step 4: Simplify right side
    53,287.80x = 2,162,787,892.15
  5. Step 5: Solve for x
    x = 2,162,787,892.15/53,287.80
  6. Step 6: Final answer
    x = 40,586.92

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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.