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Finding the Fourth Proportional to 27,340.17, 40,971.25 and 12,124.11

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Solution

The fourth proportional to 27,340.17, 40,971.25 and 12,124.11 is: 18,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,340.17 : 40,971.25 = 12,124.11 : x
  2. Step 2: Convert to fraction form
    27,340.17/40,971.25 = 12,124.11/x
  3. Step 3: Cross multiply
    27,340.17x = 40,971.25 × 12,124.11
  4. Step 4: Simplify right side
    27,340.17x = 496,740,110.63
  5. Step 5: Solve for x
    x = 496,740,110.63/27,340.17
  6. Step 6: Final answer
    x = 18,168.88

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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.