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Finding the Fourth Proportional to 25,468.57, 38,203.88 and 12,134.71

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Solution

The fourth proportional to 25,468.57, 38,203.88 and 12,134.71 is: 18,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,468.57 : 38,203.88 = 12,134.71 : x
  2. Step 2: Convert to fraction form
    25,468.57/38,203.88 = 12,134.71/x
  3. Step 3: Cross multiply
    25,468.57x = 38,203.88 × 12,134.71
  4. Step 4: Simplify right side
    25,468.57x = 463,593,004.67
  5. Step 5: Solve for x
    x = 463,593,004.67/25,468.57
  6. Step 6: Final answer
    x = 18,202.55

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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.