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Finding the Fourth Proportional to 66,566.34, 91,865.31 and 36,354.48

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Solution

The fourth proportional to 66,566.34, 91,865.31 and 36,354.48 is: 50,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.34 : 91,865.31 = 36,354.48 : x
  2. Step 2: Convert to fraction form
    66,566.34/91,865.31 = 36,354.48/x
  3. Step 3: Cross multiply
    66,566.34x = 91,865.31 × 36,354.48
  4. Step 4: Simplify right side
    66,566.34x = 3,339,715,575.09
  5. Step 5: Solve for x
    x = 3,339,715,575.09/66,566.34
  6. Step 6: Final answer
    x = 50,171.24

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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.