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Finding the Fourth Proportional to 25,398.63, 38,100.44 and 8,756.47

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Solution

The fourth proportional to 25,398.63, 38,100.44 and 8,756.47 is: 13,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.63 : 38,100.44 = 8,756.47 : x
  2. Step 2: Convert to fraction form
    25,398.63/38,100.44 = 8,756.47/x
  3. Step 3: Cross multiply
    25,398.63x = 38,100.44 × 8,756.47
  4. Step 4: Simplify right side
    25,398.63x = 333,625,359.85
  5. Step 5: Solve for x
    x = 333,625,359.85/25,398.63
  6. Step 6: Final answer
    x = 13,135.57

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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.