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Finding the Fourth Proportional to 5,079.42, 7,619.04 and 2,001.42

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Solution

The fourth proportional to 5,079.42, 7,619.04 and 2,001.42 is: 3,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.42 : 7,619.04 = 2,001.42 : x
  2. Step 2: Convert to fraction form
    5,079.42/7,619.04 = 2,001.42/x
  3. Step 3: Cross multiply
    5,079.42x = 7,619.04 × 2,001.42
  4. Step 4: Simplify right side
    5,079.42x = 15,248,899.04
  5. Step 5: Solve for x
    x = 15,248,899.04/5,079.42
  6. Step 6: Final answer
    x = 3,002.09

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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.