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Finding the Fourth Proportional to 40,956.97, 61,432.08 and 11,375.50

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Solution

The fourth proportional to 40,956.97, 61,432.08 and 11,375.50 is: 17,062.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,956.97 : 61,432.08 = 11,375.50 : x
  2. Step 2: Convert to fraction form
    40,956.97/61,432.08 = 11,375.50/x
  3. Step 3: Cross multiply
    40,956.97x = 61,432.08 × 11,375.50
  4. Step 4: Simplify right side
    40,956.97x = 698,820,626.04
  5. Step 5: Solve for x
    x = 698,820,626.04/40,956.97
  6. Step 6: Final answer
    x = 17,062.31

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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.