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Finding the Fourth Proportional to 15,950.98, 22,012.17 and 8,878.18

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Solution

The fourth proportional to 15,950.98, 22,012.17 and 8,878.18 is: 12,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,950.98 : 22,012.17 = 8,878.18 : x
  2. Step 2: Convert to fraction form
    15,950.98/22,012.17 = 8,878.18/x
  3. Step 3: Cross multiply
    15,950.98x = 22,012.17 × 8,878.18
  4. Step 4: Simplify right side
    15,950.98x = 195,428,007.45
  5. Step 5: Solve for x
    x = 195,428,007.45/15,950.98
  6. Step 6: Final answer
    x = 12,251.79

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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.