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Finding the Fourth Proportional to 61,866.06, 85,374.26 and 36,375.30

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Solution

The fourth proportional to 61,866.06, 85,374.26 and 36,375.30 is: 50,197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.06 : 85,374.26 = 36,375.30 : x
  2. Step 2: Convert to fraction form
    61,866.06/85,374.26 = 36,375.30/x
  3. Step 3: Cross multiply
    61,866.06x = 85,374.26 × 36,375.30
  4. Step 4: Simplify right side
    61,866.06x = 3,105,514,319.78
  5. Step 5: Solve for x
    x = 3,105,514,319.78/61,866.06
  6. Step 6: Final answer
    x = 50,197.38

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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.