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Finding the Fourth Proportional to 22,505.75, 33,687.81 and 15,444.48

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Solution

The fourth proportional to 22,505.75, 33,687.81 and 15,444.48 is: 23,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,505.75 : 33,687.81 = 15,444.48 : x
  2. Step 2: Convert to fraction form
    22,505.75/33,687.81 = 15,444.48/x
  3. Step 3: Cross multiply
    22,505.75x = 33,687.81 × 15,444.48
  4. Step 4: Simplify right side
    22,505.75x = 520,290,707.79
  5. Step 5: Solve for x
    x = 520,290,707.79/22,505.75
  6. Step 6: Final answer
    x = 23,118.13

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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.