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Finding the Fourth Proportional to 73,105.80, 109,658.70 and 17,701.80

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Solution

The fourth proportional to 73,105.80, 109,658.70 and 17,701.80 is: 26,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,105.80 : 109,658.70 = 17,701.80 : x
  2. Step 2: Convert to fraction form
    73,105.80/109,658.70 = 17,701.80/x
  3. Step 3: Cross multiply
    73,105.80x = 109,658.70 × 17,701.80
  4. Step 4: Simplify right side
    73,105.80x = 1,941,156,375.66
  5. Step 5: Solve for x
    x = 1,941,156,375.66/73,105.80
  6. Step 6: Final answer
    x = 26,552.70

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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.