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Finding the Fourth Proportional to 62,463.80, 93,695.70 and 20,343.80

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Solution

The fourth proportional to 62,463.80, 93,695.70 and 20,343.80 is: 30,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,463.80 : 93,695.70 = 20,343.80 : x
  2. Step 2: Convert to fraction form
    62,463.80/93,695.70 = 20,343.80/x
  3. Step 3: Cross multiply
    62,463.80x = 93,695.70 × 20,343.80
  4. Step 4: Simplify right side
    62,463.80x = 1,906,126,581.66
  5. Step 5: Solve for x
    x = 1,906,126,581.66/62,463.80
  6. Step 6: Final answer
    x = 30,515.70

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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.