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Finding the Fourth Proportional to 66,563.92, 91,854.79 and 36,343.42

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Solution

The fourth proportional to 66,563.92, 91,854.79 and 36,343.42 is: 50,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,563.92 : 91,854.79 = 36,343.42 : x
  2. Step 2: Convert to fraction form
    66,563.92/91,854.79 = 36,343.42/x
  3. Step 3: Cross multiply
    66,563.92x = 91,854.79 × 36,343.42
  4. Step 4: Simplify right side
    66,563.92x = 3,338,316,891.49
  5. Step 5: Solve for x
    x = 3,338,316,891.49/66,563.92
  6. Step 6: Final answer
    x = 50,152.05

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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.