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Finding the Fourth Proportional to 84,855.80, 127,290.08 and 25,696.24

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Solution

The fourth proportional to 84,855.80, 127,290.08 and 25,696.24 is: 38,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,855.80 : 127,290.08 = 25,696.24 : x
  2. Step 2: Convert to fraction form
    84,855.80/127,290.08 = 25,696.24/x
  3. Step 3: Cross multiply
    84,855.80x = 127,290.08 × 25,696.24
  4. Step 4: Simplify right side
    84,855.80x = 3,270,876,445.30
  5. Step 5: Solve for x
    x = 3,270,876,445.30/84,855.80
  6. Step 6: Final answer
    x = 38,546.29

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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.