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Finding the Fourth Proportional to 66,091.92, 91,204.16 and 35,876.10

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Solution

The fourth proportional to 66,091.92, 91,204.16 and 35,876.10 is: 49,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,091.92 : 91,204.16 = 35,876.10 : x
  2. Step 2: Convert to fraction form
    66,091.92/91,204.16 = 35,876.10/x
  3. Step 3: Cross multiply
    66,091.92x = 91,204.16 × 35,876.10
  4. Step 4: Simplify right side
    66,091.92x = 3,272,049,564.58
  5. Step 5: Solve for x
    x = 3,272,049,564.58/66,091.92
  6. Step 6: Final answer
    x = 49,507.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.