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Finding the Fourth Proportional to 25,793.74, 38,696.40 and 8,264.62

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Solution

The fourth proportional to 25,793.74, 38,696.40 and 8,264.62 is: 12,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.74 : 38,696.40 = 8,264.62 : x
  2. Step 2: Convert to fraction form
    25,793.74/38,696.40 = 8,264.62/x
  3. Step 3: Cross multiply
    25,793.74x = 38,696.40 × 8,264.62
  4. Step 4: Simplify right side
    25,793.74x = 319,811,041.37
  5. Step 5: Solve for x
    x = 319,811,041.37/25,793.74
  6. Step 6: Final answer
    x = 12,398.79

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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.