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Finding the Fourth Proportional to 60,517.48, 90,817.98 and 21,074.92

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Solution

The fourth proportional to 60,517.48, 90,817.98 and 21,074.92 is: 31,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,517.48 : 90,817.98 = 21,074.92 : x
  2. Step 2: Convert to fraction form
    60,517.48/90,817.98 = 21,074.92/x
  3. Step 3: Cross multiply
    60,517.48x = 90,817.98 × 21,074.92
  4. Step 4: Simplify right side
    60,517.48x = 1,913,981,663.06
  5. Step 5: Solve for x
    x = 1,913,981,663.06/60,517.48
  6. Step 6: Final answer
    x = 31,626.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.