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Finding the Fourth Proportional to 61,957.76, 85,457.92 and 38,097.92

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Solution

The fourth proportional to 61,957.76, 85,457.92 and 38,097.92 is: 52,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,957.76 : 85,457.92 = 38,097.92 : x
  2. Step 2: Convert to fraction form
    61,957.76/85,457.92 = 38,097.92/x
  3. Step 3: Cross multiply
    61,957.76x = 85,457.92 × 38,097.92
  4. Step 4: Simplify right side
    61,957.76x = 3,255,768,999.53
  5. Step 5: Solve for x
    x = 3,255,768,999.53/61,957.76
  6. Step 6: Final answer
    x = 52,548.20

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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.