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Finding the Fourth Proportional to 61,937.40, 85,470.66 and 35,079.24

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Solution

The fourth proportional to 61,937.40, 85,470.66 and 35,079.24 is: 48,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937.40 : 85,470.66 = 35,079.24 : x
  2. Step 2: Convert to fraction form
    61,937.40/85,470.66 = 35,079.24/x
  3. Step 3: Cross multiply
    61,937.40x = 85,470.66 × 35,079.24
  4. Step 4: Simplify right side
    61,937.40x = 2,998,245,795.10
  5. Step 5: Solve for x
    x = 2,998,245,795.10/61,937.40
  6. Step 6: Final answer
    x = 48,407.68

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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.