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Finding the Fourth Proportional to 61,281.38, 84,600.60 and 41,243.60

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Solution

The fourth proportional to 61,281.38, 84,600.60 and 41,243.60 is: 56,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.38 : 84,600.60 = 41,243.60 : x
  2. Step 2: Convert to fraction form
    61,281.38/84,600.60 = 41,243.60/x
  3. Step 3: Cross multiply
    61,281.38x = 84,600.60 × 41,243.60
  4. Step 4: Simplify right side
    61,281.38x = 3,489,233,306.16
  5. Step 5: Solve for x
    x = 3,489,233,306.16/61,281.38
  6. Step 6: Final answer
    x = 56,937.90

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1.5x scale

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.