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Finding the Fourth Proportional to 15,169.72, 22,744.86 and 7,374.28

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Solution

The fourth proportional to 15,169.72, 22,744.86 and 7,374.28 is: 11,056.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.72 : 22,744.86 = 7,374.28 : x
  2. Step 2: Convert to fraction form
    15,169.72/22,744.86 = 7,374.28/x
  3. Step 3: Cross multiply
    15,169.72x = 22,744.86 × 7,374.28
  4. Step 4: Simplify right side
    15,169.72x = 167,726,966.20
  5. Step 5: Solve for x
    x = 167,726,966.20/15,169.72
  6. Step 6: Final answer
    x = 11,056.69

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1.5x scale

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.