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Finding the Fourth Proportional to 39,279.35, 58,919.15 and 9,697.19

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Solution

The fourth proportional to 39,279.35, 58,919.15 and 9,697.19 is: 14,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.35 : 58,919.15 = 9,697.19 : x
  2. Step 2: Convert to fraction form
    39,279.35/58,919.15 = 9,697.19/x
  3. Step 3: Cross multiply
    39,279.35x = 58,919.15 × 9,697.19
  4. Step 4: Simplify right side
    39,279.35x = 571,350,363.73
  5. Step 5: Solve for x
    x = 571,350,363.73/39,279.35
  6. Step 6: Final answer
    x = 14,545.82

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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.