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Finding the Fourth Proportional to 66,343.20, 99,514.80 and 65,249.70

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Solution

The fourth proportional to 66,343.20, 99,514.80 and 65,249.70 is: 97,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,343.20 : 99,514.80 = 65,249.70 : x
  2. Step 2: Convert to fraction form
    66,343.20/99,514.80 = 65,249.70/x
  3. Step 3: Cross multiply
    66,343.20x = 99,514.80 × 65,249.70
  4. Step 4: Simplify right side
    66,343.20x = 6,493,310,845.56
  5. Step 5: Solve for x
    x = 6,493,310,845.56/66,343.20
  6. Step 6: Final answer
    x = 97,874.55

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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.