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Finding the Fourth Proportional to 11,262.90, 16,851.15 and 7,374.90

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Solution

The fourth proportional to 11,262.90, 16,851.15 and 7,374.90 is: 11,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.90 : 16,851.15 = 7,374.90 : x
  2. Step 2: Convert to fraction form
    11,262.90/16,851.15 = 7,374.90/x
  3. Step 3: Cross multiply
    11,262.90x = 16,851.15 × 7,374.90
  4. Step 4: Simplify right side
    11,262.90x = 124,275,546.14
  5. Step 5: Solve for x
    x = 124,275,546.14/11,262.90
  6. Step 6: Final answer
    x = 11,034.06

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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.