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Finding the Fourth Proportional to 72,057.60, 108,105.84 and 22,136.76

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Solution

The fourth proportional to 72,057.60, 108,105.84 and 22,136.76 is: 33,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,057.60 : 108,105.84 = 22,136.76 : x
  2. Step 2: Convert to fraction form
    72,057.60/108,105.84 = 22,136.76/x
  3. Step 3: Cross multiply
    72,057.60x = 108,105.84 × 22,136.76
  4. Step 4: Simplify right side
    72,057.60x = 2,393,113,034.68
  5. Step 5: Solve for x
    x = 2,393,113,034.68/72,057.60
  6. Step 6: Final answer
    x = 33,211.11

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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.