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Finding the Fourth Proportional to 71,774.92, 107,649.58 and 21,842.92

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Solution

The fourth proportional to 71,774.92, 107,649.58 and 21,842.92 is: 32,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,774.92 : 107,649.58 = 21,842.92 : x
  2. Step 2: Convert to fraction form
    71,774.92/107,649.58 = 21,842.92/x
  3. Step 3: Cross multiply
    71,774.92x = 107,649.58 × 21,842.92
  4. Step 4: Simplify right side
    71,774.92x = 2,351,381,163.97
  5. Step 5: Solve for x
    x = 2,351,381,163.97/71,774.92
  6. Step 6: Final answer
    x = 32,760.48

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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.