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Finding the Fourth Proportional to 80,372.19, 120,482.84 and 27,026.86

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Solution

The fourth proportional to 80,372.19, 120,482.84 and 27,026.86 is: 40,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.19 : 120,482.84 = 27,026.86 : x
  2. Step 2: Convert to fraction form
    80,372.19/120,482.84 = 27,026.86/x
  3. Step 3: Cross multiply
    80,372.19x = 120,482.84 × 27,026.86
  4. Step 4: Simplify right side
    80,372.19x = 3,256,272,892.02
  5. Step 5: Solve for x
    x = 3,256,272,892.02/80,372.19
  6. Step 6: Final answer
    x = 40,514.92

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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.