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Finding the Fourth Proportional to 54,616.40, 81,929.02 and 15,173.52

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Solution

The fourth proportional to 54,616.40, 81,929.02 and 15,173.52 is: 22,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,616.40 : 81,929.02 = 15,173.52 : x
  2. Step 2: Convert to fraction form
    54,616.40/81,929.02 = 15,173.52/x
  3. Step 3: Cross multiply
    54,616.40x = 81,929.02 × 15,173.52
  4. Step 4: Simplify right side
    54,616.40x = 1,243,151,623.55
  5. Step 5: Solve for x
    x = 1,243,151,623.55/54,616.40
  6. Step 6: Final answer
    x = 22,761.51

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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.