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Finding the Fourth Proportional to 61,397.28, 91,940.40 and 37,952.64

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Solution

The fourth proportional to 61,397.28, 91,940.40 and 37,952.64 is: 56,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,397.28 : 91,940.40 = 37,952.64 : x
  2. Step 2: Convert to fraction form
    61,397.28/91,940.40 = 37,952.64/x
  3. Step 3: Cross multiply
    61,397.28x = 91,940.40 × 37,952.64
  4. Step 4: Simplify right side
    61,397.28x = 3,489,380,902.66
  5. Step 5: Solve for x
    x = 3,489,380,902.66/61,397.28
  6. Step 6: Final answer
    x = 56,832.83

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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.