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Finding the Fourth Proportional to 16,115.52, 22,239.08 and 8,945.02

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Solution

The fourth proportional to 16,115.52, 22,239.08 and 8,945.02 is: 12,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.52 : 22,239.08 = 8,945.02 : x
  2. Step 2: Convert to fraction form
    16,115.52/22,239.08 = 8,945.02/x
  3. Step 3: Cross multiply
    16,115.52x = 22,239.08 × 8,945.02
  4. Step 4: Simplify right side
    16,115.52x = 198,929,015.38
  5. Step 5: Solve for x
    x = 198,929,015.38/16,115.52
  6. Step 6: Final answer
    x = 12,343.94

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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.