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Finding the Fourth Proportional to 84,796.80, 127,215.18 and 25,632.96

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Solution

The fourth proportional to 84,796.80, 127,215.18 and 25,632.96 is: 38,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,796.80 : 127,215.18 = 25,632.96 : x
  2. Step 2: Convert to fraction form
    84,796.80/127,215.18 = 25,632.96/x
  3. Step 3: Cross multiply
    84,796.80x = 127,215.18 × 25,632.96
  4. Step 4: Simplify right side
    84,796.80x = 3,260,901,620.33
  5. Step 5: Solve for x
    x = 3,260,901,620.33/84,796.80
  6. Step 6: Final answer
    x = 38,455.48

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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.