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Finding the Fourth Proportional to 15,318.39, 22,979.07 and 5,959.17

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Solution

The fourth proportional to 15,318.39, 22,979.07 and 5,959.17 is: 8,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.39 : 22,979.07 = 5,959.17 : x
  2. Step 2: Convert to fraction form
    15,318.39/22,979.07 = 5,959.17/x
  3. Step 3: Cross multiply
    15,318.39x = 22,979.07 × 5,959.17
  4. Step 4: Simplify right side
    15,318.39x = 136,936,184.57
  5. Step 5: Solve for x
    x = 136,936,184.57/15,318.39
  6. Step 6: Final answer
    x = 8,939.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.