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Finding the Fourth Proportional to 61,842.56, 85,329.60 and 36,700.16

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Solution

The fourth proportional to 61,842.56, 85,329.60 and 36,700.16 is: 50,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,842.56 : 85,329.60 = 36,700.16 : x
  2. Step 2: Convert to fraction form
    61,842.56/85,329.60 = 36,700.16/x
  3. Step 3: Cross multiply
    61,842.56x = 85,329.60 × 36,700.16
  4. Step 4: Simplify right side
    61,842.56x = 3,131,609,972.74
  5. Step 5: Solve for x
    x = 3,131,609,972.74/61,842.56
  6. Step 6: Final answer
    x = 50,638.43

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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.