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Finding the Fourth Proportional to 84,960.54, 127,432.56 and 25,796.72

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Solution

The fourth proportional to 84,960.54, 127,432.56 and 25,796.72 is: 38,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,960.54 : 127,432.56 = 25,796.72 : x
  2. Step 2: Convert to fraction form
    84,960.54/127,432.56 = 25,796.72/x
  3. Step 3: Cross multiply
    84,960.54x = 127,432.56 × 25,796.72
  4. Step 4: Simplify right side
    84,960.54x = 3,287,342,069.20
  5. Step 5: Solve for x
    x = 3,287,342,069.20/84,960.54
  6. Step 6: Final answer
    x = 38,692.58

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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.