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Finding the Fourth Proportional to 10,708.16, 16,062.18 and 2,916.96

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Solution

The fourth proportional to 10,708.16, 16,062.18 and 2,916.96 is: 4,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,708.16 : 16,062.18 = 2,916.96 : x
  2. Step 2: Convert to fraction form
    10,708.16/16,062.18 = 2,916.96/x
  3. Step 3: Cross multiply
    10,708.16x = 16,062.18 × 2,916.96
  4. Step 4: Simplify right side
    10,708.16x = 46,852,736.57
  5. Step 5: Solve for x
    x = 46,852,736.57/10,708.16
  6. Step 6: Final answer
    x = 4,375.42

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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.