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Finding the Fourth Proportional to 15,956.38, 22,019.80 and 8,882.82

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Solution

The fourth proportional to 15,956.38, 22,019.80 and 8,882.82 is: 12,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.38 : 22,019.80 = 8,882.82 : x
  2. Step 2: Convert to fraction form
    15,956.38/22,019.80 = 8,882.82/x
  3. Step 3: Cross multiply
    15,956.38x = 22,019.80 × 8,882.82
  4. Step 4: Simplify right side
    15,956.38x = 195,597,919.84
  5. Step 5: Solve for x
    x = 195,597,919.84/15,956.38
  6. Step 6: Final answer
    x = 12,258.29

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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.