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Finding the Fourth Proportional to 67,279.79, 100,966.53 and 27,837.11

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Solution

The fourth proportional to 67,279.79, 100,966.53 and 27,837.11 is: 41,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,279.79 : 100,966.53 = 27,837.11 : x
  2. Step 2: Convert to fraction form
    67,279.79/100,966.53 = 27,837.11/x
  3. Step 3: Cross multiply
    67,279.79x = 100,966.53 × 27,837.11
  4. Step 4: Simplify right side
    67,279.79x = 2,810,616,401.93
  5. Step 5: Solve for x
    x = 2,810,616,401.93/67,279.79
  6. Step 6: Final answer
    x = 41,775.05

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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.