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Finding the Fourth Proportional to 25,691.94, 38,519.22 and 17,351.28

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Solution

The fourth proportional to 25,691.94, 38,519.22 and 17,351.28 is: 26,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.94 : 38,519.22 = 17,351.28 : x
  2. Step 2: Convert to fraction form
    25,691.94/38,519.22 = 17,351.28/x
  3. Step 3: Cross multiply
    25,691.94x = 38,519.22 × 17,351.28
  4. Step 4: Simplify right side
    25,691.94x = 668,357,771.60
  5. Step 5: Solve for x
    x = 668,357,771.60/25,691.94
  6. Step 6: Final answer
    x = 26,014.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.