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Finding the Fourth Proportional to 54,312, 81,394.02 and 27,961.08

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Solution

The fourth proportional to 54,312, 81,394.02 and 27,961.08 is: 41,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,312 : 81,394.02 = 27,961.08 : x
  2. Step 2: Convert to fraction form
    54,312/81,394.02 = 27,961.08/x
  3. Step 3: Cross multiply
    54,312x = 81,394.02 × 27,961.08
  4. Step 4: Simplify right side
    54,312x = 2,275,864,704.74
  5. Step 5: Solve for x
    x = 2,275,864,704.74/54,312
  6. Step 6: Final answer
    x = 41,903.53

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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.