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Finding the Fourth Proportional to 61,722.38, 85,183.82 and 34,866.62

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Solution

The fourth proportional to 61,722.38, 85,183.82 and 34,866.62 is: 48,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,722.38 : 85,183.82 = 34,866.62 : x
  2. Step 2: Convert to fraction form
    61,722.38/85,183.82 = 34,866.62/x
  3. Step 3: Cross multiply
    61,722.38x = 85,183.82 × 34,866.62
  4. Step 4: Simplify right side
    61,722.38x = 2,970,071,707.76
  5. Step 5: Solve for x
    x = 2,970,071,707.76/61,722.38
  6. Step 6: Final answer
    x = 48,119.85

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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.