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Finding the Fourth Proportional to 10,616.03, 15,923.68 and 2,718.61

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Solution

The fourth proportional to 10,616.03, 15,923.68 and 2,718.61 is: 4,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.03 : 15,923.68 = 2,718.61 : x
  2. Step 2: Convert to fraction form
    10,616.03/15,923.68 = 2,718.61/x
  3. Step 3: Cross multiply
    10,616.03x = 15,923.68 × 2,718.61
  4. Step 4: Simplify right side
    10,616.03x = 43,290,229.08
  5. Step 5: Solve for x
    x = 43,290,229.08/10,616.03
  6. Step 6: Final answer
    x = 4,077.82

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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.