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Finding the Fourth Proportional to 16,218.95, 22,382.15 and 8,766.95

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Solution

The fourth proportional to 16,218.95, 22,382.15 and 8,766.95 is: 12,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.95 : 22,382.15 = 8,766.95 : x
  2. Step 2: Convert to fraction form
    16,218.95/22,382.15 = 8,766.95/x
  3. Step 3: Cross multiply
    16,218.95x = 22,382.15 × 8,766.95
  4. Step 4: Simplify right side
    16,218.95x = 196,223,034.20
  5. Step 5: Solve for x
    x = 196,223,034.20/16,218.95
  6. Step 6: Final answer
    x = 12,098.38

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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.