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Finding the Fourth Proportional to 84,551.88, 126,827.52 and 25,387.48

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Solution

The fourth proportional to 84,551.88, 126,827.52 and 25,387.48 is: 38,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,551.88 : 126,827.52 = 25,387.48 : x
  2. Step 2: Convert to fraction form
    84,551.88/126,827.52 = 25,387.48/x
  3. Step 3: Cross multiply
    84,551.88x = 126,827.52 × 25,387.48
  4. Step 4: Simplify right side
    84,551.88x = 3,219,831,127.45
  5. Step 5: Solve for x
    x = 3,219,831,127.45/84,551.88
  6. Step 6: Final answer
    x = 38,081.13

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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.