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Finding the Fourth Proportional to 2,695.31, 3,719.52 and 1,516.38

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Solution

The fourth proportional to 2,695.31, 3,719.52 and 1,516.38 is: 2,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.31 : 3,719.52 = 1,516.38 : x
  2. Step 2: Convert to fraction form
    2,695.31/3,719.52 = 1,516.38/x
  3. Step 3: Cross multiply
    2,695.31x = 3,719.52 × 1,516.38
  4. Step 4: Simplify right side
    2,695.31x = 5,640,199.20
  5. Step 5: Solve for x
    x = 5,640,199.20/2,695.31
  6. Step 6: Final answer
    x = 2,092.60

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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.