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Finding the Fourth Proportional to 25,651.30, 38,481 and 10,860.31

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Solution

The fourth proportional to 25,651.30, 38,481 and 10,860.31 is: 16,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.30 : 38,481 = 10,860.31 : x
  2. Step 2: Convert to fraction form
    25,651.30/38,481 = 10,860.31/x
  3. Step 3: Cross multiply
    25,651.30x = 38,481 × 10,860.31
  4. Step 4: Simplify right side
    25,651.30x = 417,915,589.11
  5. Step 5: Solve for x
    x = 417,915,589.11/25,651.30
  6. Step 6: Final answer
    x = 16,292.18

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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.