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Finding the Fourth Proportional to 66,199.80, 99,234.90 and 26,704.20

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Solution

The fourth proportional to 66,199.80, 99,234.90 and 26,704.20 is: 40,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.80 : 99,234.90 = 26,704.20 : x
  2. Step 2: Convert to fraction form
    66,199.80/99,234.90 = 26,704.20/x
  3. Step 3: Cross multiply
    66,199.80x = 99,234.90 × 26,704.20
  4. Step 4: Simplify right side
    66,199.80x = 2,649,988,616.58
  5. Step 5: Solve for x
    x = 2,649,988,616.58/66,199.80
  6. Step 6: Final answer
    x = 40,030.16

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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.