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Finding the Fourth Proportional to 61,693.38, 85,121.55 and 36,202.14

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Solution

The fourth proportional to 61,693.38, 85,121.55 and 36,202.14 is: 49,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.38 : 85,121.55 = 36,202.14 : x
  2. Step 2: Convert to fraction form
    61,693.38/85,121.55 = 36,202.14/x
  3. Step 3: Cross multiply
    61,693.38x = 85,121.55 × 36,202.14
  4. Step 4: Simplify right side
    61,693.38x = 3,081,582,270.12
  5. Step 5: Solve for x
    x = 3,081,582,270.12/61,693.38
  6. Step 6: Final answer
    x = 49,949.97

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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.