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Finding the Fourth Proportional to 25,894.65, 38,847.65 and 15,374.27

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Solution

The fourth proportional to 25,894.65, 38,847.65 and 15,374.27 is: 23,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,894.65 : 38,847.65 = 15,374.27 : x
  2. Step 2: Convert to fraction form
    25,894.65/38,847.65 = 15,374.27/x
  3. Step 3: Cross multiply
    25,894.65x = 38,847.65 × 15,374.27
  4. Step 4: Simplify right side
    25,894.65x = 597,253,988.86
  5. Step 5: Solve for x
    x = 597,253,988.86/25,894.65
  6. Step 6: Final answer
    x = 23,064.76

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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.