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Finding the Fourth Proportional to 66,494.15, 99,655.05 and 27,005.39

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Solution

The fourth proportional to 66,494.15, 99,655.05 and 27,005.39 is: 40,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.15 : 99,655.05 = 27,005.39 : x
  2. Step 2: Convert to fraction form
    66,494.15/99,655.05 = 27,005.39/x
  3. Step 3: Cross multiply
    66,494.15x = 99,655.05 × 27,005.39
  4. Step 4: Simplify right side
    66,494.15x = 2,691,223,490.72
  5. Step 5: Solve for x
    x = 2,691,223,490.72/66,494.15
  6. Step 6: Final answer
    x = 40,473.09

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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.