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Finding the Fourth Proportional to 15,169.48, 22,739.52 and 7,374.04

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Solution

The fourth proportional to 15,169.48, 22,739.52 and 7,374.04 is: 11,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.48 : 22,739.52 = 7,374.04 : x
  2. Step 2: Convert to fraction form
    15,169.48/22,739.52 = 7,374.04/x
  3. Step 3: Cross multiply
    15,169.48x = 22,739.52 × 7,374.04
  4. Step 4: Simplify right side
    15,169.48x = 167,682,130.06
  5. Step 5: Solve for x
    x = 167,682,130.06/15,169.48
  6. Step 6: Final answer
    x = 11,053.91

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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.