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Finding the Fourth Proportional to 15,169.70, 22,744.73 and 7,272.02

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Solution

The fourth proportional to 15,169.70, 22,744.73 and 7,272.02 is: 10,903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.70 : 22,744.73 = 7,272.02 : x
  2. Step 2: Convert to fraction form
    15,169.70/22,744.73 = 7,272.02/x
  3. Step 3: Cross multiply
    15,169.70x = 22,744.73 × 7,272.02
  4. Step 4: Simplify right side
    15,169.70x = 165,400,206.50
  5. Step 5: Solve for x
    x = 165,400,206.50/15,169.70
  6. Step 6: Final answer
    x = 10,903.33

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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.