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Finding the Fourth Proportional to 66,462.68, 99,712.85 and 27,048.08

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Solution

The fourth proportional to 66,462.68, 99,712.85 and 27,048.08 is: 40,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.68 : 99,712.85 = 27,048.08 : x
  2. Step 2: Convert to fraction form
    66,462.68/99,712.85 = 27,048.08/x
  3. Step 3: Cross multiply
    66,462.68x = 99,712.85 × 27,048.08
  4. Step 4: Simplify right side
    66,462.68x = 2,697,040,510.02
  5. Step 5: Solve for x
    x = 2,697,040,510.02/66,462.68
  6. Step 6: Final answer
    x = 40,579.78

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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.