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Finding the Fourth Proportional to 60,061.57, 90,100.62 and 20,613.56

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Solution

The fourth proportional to 60,061.57, 90,100.62 and 20,613.56 is: 30,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,061.57 : 90,100.62 = 20,613.56 : x
  2. Step 2: Convert to fraction form
    60,061.57/90,100.62 = 20,613.56/x
  3. Step 3: Cross multiply
    60,061.57x = 90,100.62 × 20,613.56
  4. Step 4: Simplify right side
    60,061.57x = 1,857,294,085.90
  5. Step 5: Solve for x
    x = 1,857,294,085.90/60,061.57
  6. Step 6: Final answer
    x = 30,923.17

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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.