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Finding the Fourth Proportional to 80,394.86, 120,590.84 and 32,999.66

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Solution

The fourth proportional to 80,394.86, 120,590.84 and 32,999.66 is: 49,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,394.86 : 120,590.84 = 32,999.66 : x
  2. Step 2: Convert to fraction form
    80,394.86/120,590.84 = 32,999.66/x
  3. Step 3: Cross multiply
    80,394.86x = 120,590.84 × 32,999.66
  4. Step 4: Simplify right side
    80,394.86x = 3,979,456,719.11
  5. Step 5: Solve for x
    x = 3,979,456,719.11/80,394.86
  6. Step 6: Final answer
    x = 49,498.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.