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Finding the Fourth Proportional to 25,673, 38,398.30 and 15,117.88

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Solution

The fourth proportional to 25,673, 38,398.30 and 15,117.88 is: 22,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673 : 38,398.30 = 15,117.88 : x
  2. Step 2: Convert to fraction form
    25,673/38,398.30 = 15,117.88/x
  3. Step 3: Cross multiply
    25,673x = 38,398.30 × 15,117.88
  4. Step 4: Simplify right side
    25,673x = 580,500,891.60
  5. Step 5: Solve for x
    x = 580,500,891.60/25,673
  6. Step 6: Final answer
    x = 22,611.34

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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.