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Finding the Fourth Proportional to 66,554.07, 91,843.91 and 36,339.30

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Solution

The fourth proportional to 66,554.07, 91,843.91 and 36,339.30 is: 50,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.07 : 91,843.91 = 36,339.30 : x
  2. Step 2: Convert to fraction form
    66,554.07/91,843.91 = 36,339.30/x
  3. Step 3: Cross multiply
    66,554.07x = 91,843.91 × 36,339.30
  4. Step 4: Simplify right side
    66,554.07x = 3,337,543,489.51
  5. Step 5: Solve for x
    x = 3,337,543,489.51/66,554.07
  6. Step 6: Final answer
    x = 50,147.85

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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.