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Finding the Fourth Proportional to 84,963.25, 127,436.64 and 25,799.44

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Solution

The fourth proportional to 84,963.25, 127,436.64 and 25,799.44 is: 38,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,963.25 : 127,436.64 = 25,799.44 : x
  2. Step 2: Convert to fraction form
    84,963.25/127,436.64 = 25,799.44/x
  3. Step 3: Cross multiply
    84,963.25x = 127,436.64 × 25,799.44
  4. Step 4: Simplify right side
    84,963.25x = 3,287,793,557.79
  5. Step 5: Solve for x
    x = 3,287,793,557.79/84,963.25
  6. Step 6: Final answer
    x = 38,696.65

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1.5x scale

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.