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Finding the Fourth Proportional to 69,396.50, 95,767.17 and 39,588.50

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Solution

The fourth proportional to 69,396.50, 95,767.17 and 39,588.50 is: 54,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,396.50 : 95,767.17 = 39,588.50 : x
  2. Step 2: Convert to fraction form
    69,396.50/95,767.17 = 39,588.50/x
  3. Step 3: Cross multiply
    69,396.50x = 95,767.17 × 39,588.50
  4. Step 4: Simplify right side
    69,396.50x = 3,791,278,609.55
  5. Step 5: Solve for x
    x = 3,791,278,609.55/69,396.50
  6. Step 6: Final answer
    x = 54,632.13

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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.