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Finding the Fourth Proportional to 66,446.48, 99,696.26 and 27,006.68

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Solution

The fourth proportional to 66,446.48, 99,696.26 and 27,006.68 is: 40,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.48 : 99,696.26 = 27,006.68 : x
  2. Step 2: Convert to fraction form
    66,446.48/99,696.26 = 27,006.68/x
  3. Step 3: Cross multiply
    66,446.48x = 99,696.26 × 27,006.68
  4. Step 4: Simplify right side
    66,446.48x = 2,692,464,991.02
  5. Step 5: Solve for x
    x = 2,692,464,991.02/66,446.48
  6. Step 6: Final answer
    x = 40,520.81

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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.