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Finding the Fourth Proportional to 45,672.39, 68,461.89 and 25,909.20

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Solution

The fourth proportional to 45,672.39, 68,461.89 and 25,909.20 is: 38,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,672.39 : 68,461.89 = 25,909.20 : x
  2. Step 2: Convert to fraction form
    45,672.39/68,461.89 = 25,909.20/x
  3. Step 3: Cross multiply
    45,672.39x = 68,461.89 × 25,909.20
  4. Step 4: Simplify right side
    45,672.39x = 1,773,792,800.39
  5. Step 5: Solve for x
    x = 1,773,792,800.39/45,672.39
  6. Step 6: Final answer
    x = 38,837.31

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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.