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Finding the Fourth Proportional to 15,955.68, 22,019.76 and 8,882.08

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Solution

The fourth proportional to 15,955.68, 22,019.76 and 8,882.08 is: 12,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.68 : 22,019.76 = 8,882.08 : x
  2. Step 2: Convert to fraction form
    15,955.68/22,019.76 = 8,882.08/x
  3. Step 3: Cross multiply
    15,955.68x = 22,019.76 × 8,882.08
  4. Step 4: Simplify right side
    15,955.68x = 195,581,269.90
  5. Step 5: Solve for x
    x = 195,581,269.90/15,955.68
  6. Step 6: Final answer
    x = 12,257.78

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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.