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Finding the Fourth Proportional to 8,034.90, 12,051.90 and 2,488.20

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Solution

The fourth proportional to 8,034.90, 12,051.90 and 2,488.20 is: 3,732.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,034.90 : 12,051.90 = 2,488.20 : x
  2. Step 2: Convert to fraction form
    8,034.90/12,051.90 = 2,488.20/x
  3. Step 3: Cross multiply
    8,034.90x = 12,051.90 × 2,488.20
  4. Step 4: Simplify right side
    8,034.90x = 29,987,537.58
  5. Step 5: Solve for x
    x = 29,987,537.58/8,034.90
  6. Step 6: Final answer
    x = 3,732.16

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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.