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Finding the Fourth Proportional to 25,339.20, 34,967.52 and 14,161.20

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Solution

The fourth proportional to 25,339.20, 34,967.52 and 14,161.20 is: 19,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.20 : 34,967.52 = 14,161.20 : x
  2. Step 2: Convert to fraction form
    25,339.20/34,967.52 = 14,161.20/x
  3. Step 3: Cross multiply
    25,339.20x = 34,967.52 × 14,161.20
  4. Step 4: Simplify right side
    25,339.20x = 495,182,044.22
  5. Step 5: Solve for x
    x = 495,182,044.22/25,339.20
  6. Step 6: Final answer
    x = 19,542.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.