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Finding the Fourth Proportional to 6,616.93, 9,927.97 and 2,916.55

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Solution

The fourth proportional to 6,616.93, 9,927.97 and 2,916.55 is: 4,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.93 : 9,927.97 = 2,916.55 : x
  2. Step 2: Convert to fraction form
    6,616.93/9,927.97 = 2,916.55/x
  3. Step 3: Cross multiply
    6,616.93x = 9,927.97 × 2,916.55
  4. Step 4: Simplify right side
    6,616.93x = 28,955,370.18
  5. Step 5: Solve for x
    x = 28,955,370.18/6,616.93
  6. Step 6: Final answer
    x = 4,375.95

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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.