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Finding the Fourth Proportional to 66,937.50, 100,432.53 and 29,471.28

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Solution

The fourth proportional to 66,937.50, 100,432.53 and 29,471.28 is: 44,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,937.50 : 100,432.53 = 29,471.28 : x
  2. Step 2: Convert to fraction form
    66,937.50/100,432.53 = 29,471.28/x
  3. Step 3: Cross multiply
    66,937.50x = 100,432.53 × 29,471.28
  4. Step 4: Simplify right side
    66,937.50x = 2,959,875,766.40
  5. Step 5: Solve for x
    x = 2,959,875,766.40/66,937.50
  6. Step 6: Final answer
    x = 44,218.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.