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Finding the Fourth Proportional to 79,035.68, 109,079.17 and 51,834.62

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Solution

The fourth proportional to 79,035.68, 109,079.17 and 51,834.62 is: 71,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,035.68 : 109,079.17 = 51,834.62 : x
  2. Step 2: Convert to fraction form
    79,035.68/109,079.17 = 51,834.62/x
  3. Step 3: Cross multiply
    79,035.68x = 109,079.17 × 51,834.62
  4. Step 4: Simplify right side
    79,035.68x = 5,654,077,469.98
  5. Step 5: Solve for x
    x = 5,654,077,469.98/79,035.68
  6. Step 6: Final answer
    x = 71,538.29

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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.