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Finding the Fourth Proportional to 66,554.11, 91,843.97 and 36,339.34

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Solution

The fourth proportional to 66,554.11, 91,843.97 and 36,339.34 is: 50,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.11 : 91,843.97 = 36,339.34 : x
  2. Step 2: Convert to fraction form
    66,554.11/91,843.97 = 36,339.34/x
  3. Step 3: Cross multiply
    66,554.11x = 91,843.97 × 36,339.34
  4. Step 4: Simplify right side
    66,554.11x = 3,337,549,252.78
  5. Step 5: Solve for x
    x = 3,337,549,252.78/66,554.11
  6. Step 6: Final answer
    x = 50,147.91

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1.5x scale

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.