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Finding the Fourth Proportional to 66,554.87, 91,847.61 and 36,342.11

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Solution

The fourth proportional to 66,554.87, 91,847.61 and 36,342.11 is: 50,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.87 : 91,847.61 = 36,342.11 : x
  2. Step 2: Convert to fraction form
    66,554.87/91,847.61 = 36,342.11/x
  3. Step 3: Cross multiply
    66,554.87x = 91,847.61 × 36,342.11
  4. Step 4: Simplify right side
    66,554.87x = 3,337,935,486.62
  5. Step 5: Solve for x
    x = 3,337,935,486.62/66,554.87
  6. Step 6: Final answer
    x = 50,153.14

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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.