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Finding the Fourth Proportional to 69,882.91, 96,438.78 and 38,051.71

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Solution

The fourth proportional to 69,882.91, 96,438.78 and 38,051.71 is: 52,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,882.91 : 96,438.78 = 38,051.71 : x
  2. Step 2: Convert to fraction form
    69,882.91/96,438.78 = 38,051.71/x
  3. Step 3: Cross multiply
    69,882.91x = 96,438.78 × 38,051.71
  4. Step 4: Simplify right side
    69,882.91x = 3,669,660,489.31
  5. Step 5: Solve for x
    x = 3,669,660,489.31/69,882.91
  6. Step 6: Final answer
    x = 52,511.56

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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.