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Finding the Fourth Proportional to 69,465.18, 95,865.72 and 39,251.76

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Solution

The fourth proportional to 69,465.18, 95,865.72 and 39,251.76 is: 54,169.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,465.18 : 95,865.72 = 39,251.76 : x
  2. Step 2: Convert to fraction form
    69,465.18/95,865.72 = 39,251.76/x
  3. Step 3: Cross multiply
    69,465.18x = 95,865.72 × 39,251.76
  4. Step 4: Simplify right side
    69,465.18x = 3,762,898,233.67
  5. Step 5: Solve for x
    x = 3,762,898,233.67/69,465.18
  6. Step 6: Final answer
    x = 54,169.56

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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.