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Finding the Fourth Proportional to 54,296.84, 81,468.50 and 28,020.03

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Solution

The fourth proportional to 54,296.84, 81,468.50 and 28,020.03 is: 42,042.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,296.84 : 81,468.50 = 28,020.03 : x
  2. Step 2: Convert to fraction form
    54,296.84/81,468.50 = 28,020.03/x
  3. Step 3: Cross multiply
    54,296.84x = 81,468.50 × 28,020.03
  4. Step 4: Simplify right side
    54,296.84x = 2,282,749,673.95
  5. Step 5: Solve for x
    x = 2,282,749,673.95/54,296.84
  6. Step 6: Final answer
    x = 42,042.04

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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.