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Finding the Fourth Proportional to 16,231.92, 22,411.80 and 10,659.12

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Solution

The fourth proportional to 16,231.92, 22,411.80 and 10,659.12 is: 14,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,231.92 : 22,411.80 = 10,659.12 : x
  2. Step 2: Convert to fraction form
    16,231.92/22,411.80 = 10,659.12/x
  3. Step 3: Cross multiply
    16,231.92x = 22,411.80 × 10,659.12
  4. Step 4: Simplify right side
    16,231.92x = 238,890,065.62
  5. Step 5: Solve for x
    x = 238,890,065.62/16,231.92
  6. Step 6: Final answer
    x = 14,717.30

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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.