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Finding the Fourth Proportional to 54,498.79, 81,742.02 and 15,061.51

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Solution

The fourth proportional to 54,498.79, 81,742.02 and 15,061.51 is: 22,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,498.79 : 81,742.02 = 15,061.51 : x
  2. Step 2: Convert to fraction form
    54,498.79/81,742.02 = 15,061.51/x
  3. Step 3: Cross multiply
    54,498.79x = 81,742.02 × 15,061.51
  4. Step 4: Simplify right side
    54,498.79x = 1,231,158,251.65
  5. Step 5: Solve for x
    x = 1,231,158,251.65/54,498.79
  6. Step 6: Final answer
    x = 22,590.56

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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.