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Finding the Fourth Proportional to 54,506.16, 81,759.04 and 15,063.20

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Solution

The fourth proportional to 54,506.16, 81,759.04 and 15,063.20 is: 22,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,506.16 : 81,759.04 = 15,063.20 : x
  2. Step 2: Convert to fraction form
    54,506.16/81,759.04 = 15,063.20/x
  3. Step 3: Cross multiply
    54,506.16x = 81,759.04 × 15,063.20
  4. Step 4: Simplify right side
    54,506.16x = 1,231,552,771.33
  5. Step 5: Solve for x
    x = 1,231,552,771.33/54,506.16
  6. Step 6: Final answer
    x = 22,594.74

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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.