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Finding the Fourth Proportional to 27,100.61, 40,551.12 and 16,388.76

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Solution

The fourth proportional to 27,100.61, 40,551.12 and 16,388.76 is: 24,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,100.61 : 40,551.12 = 16,388.76 : x
  2. Step 2: Convert to fraction form
    27,100.61/40,551.12 = 16,388.76/x
  3. Step 3: Cross multiply
    27,100.61x = 40,551.12 × 16,388.76
  4. Step 4: Simplify right side
    27,100.61x = 664,582,573.41
  5. Step 5: Solve for x
    x = 664,582,573.41/27,100.61
  6. Step 6: Final answer
    x = 24,522.79

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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.