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Finding the Fourth Proportional to 22,489.92, 33,712.30 and 7,688.71

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Solution

The fourth proportional to 22,489.92, 33,712.30 and 7,688.71 is: 11,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.92 : 33,712.30 = 7,688.71 : x
  2. Step 2: Convert to fraction form
    22,489.92/33,712.30 = 7,688.71/x
  3. Step 3: Cross multiply
    22,489.92x = 33,712.30 × 7,688.71
  4. Step 4: Simplify right side
    22,489.92x = 259,204,102.48
  5. Step 5: Solve for x
    x = 259,204,102.48/22,489.92
  6. Step 6: Final answer
    x = 11,525.35

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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.