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Finding the Fourth Proportional to 54,594.93, 81,874.98 and 21,306.90

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Solution

The fourth proportional to 54,594.93, 81,874.98 and 21,306.90 is: 31,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,594.93 : 81,874.98 = 21,306.90 : x
  2. Step 2: Convert to fraction form
    54,594.93/81,874.98 = 21,306.90/x
  3. Step 3: Cross multiply
    54,594.93x = 81,874.98 × 21,306.90
  4. Step 4: Simplify right side
    54,594.93x = 1,744,502,011.36
  5. Step 5: Solve for x
    x = 1,744,502,011.36/54,594.93
  6. Step 6: Final answer
    x = 31,953.55

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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.