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Finding the Fourth Proportional to 84,805.96, 127,227.42 and 25,640.11

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Solution

The fourth proportional to 84,805.96, 127,227.42 and 25,640.11 is: 38,465.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,805.96 : 127,227.42 = 25,640.11 : x
  2. Step 2: Convert to fraction form
    84,805.96/127,227.42 = 25,640.11/x
  3. Step 3: Cross multiply
    84,805.96x = 127,227.42 × 25,640.11
  4. Step 4: Simplify right side
    84,805.96x = 3,262,125,043.82
  5. Step 5: Solve for x
    x = 3,262,125,043.82/84,805.96
  6. Step 6: Final answer
    x = 38,465.75

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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.