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Finding the Fourth Proportional to 16,882.88, 25,219.04 and 12,508.88

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Solution

The fourth proportional to 16,882.88, 25,219.04 and 12,508.88 is: 18,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,882.88 : 25,219.04 = 12,508.88 : x
  2. Step 2: Convert to fraction form
    16,882.88/25,219.04 = 12,508.88/x
  3. Step 3: Cross multiply
    16,882.88x = 25,219.04 × 12,508.88
  4. Step 4: Simplify right side
    16,882.88x = 315,461,945.08
  5. Step 5: Solve for x
    x = 315,461,945.08/16,882.88
  6. Step 6: Final answer
    x = 18,685.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.