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Finding the Fourth Proportional to 25,137.92, 34,689.72 and 13,959.92

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Solution

The fourth proportional to 25,137.92, 34,689.72 and 13,959.92 is: 19,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,137.92 : 34,689.72 = 13,959.92 : x
  2. Step 2: Convert to fraction form
    25,137.92/34,689.72 = 13,959.92/x
  3. Step 3: Cross multiply
    25,137.92x = 34,689.72 × 13,959.92
  4. Step 4: Simplify right side
    25,137.92x = 484,265,716.02
  5. Step 5: Solve for x
    x = 484,265,716.02/25,137.92
  6. Step 6: Final answer
    x = 19,264.35

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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.