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Finding the Fourth Proportional to 60,640.20, 90,927.90 and 25,540.20

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Solution

The fourth proportional to 60,640.20, 90,927.90 and 25,540.20 is: 38,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,640.20 : 90,927.90 = 25,540.20 : x
  2. Step 2: Convert to fraction form
    60,640.20/90,927.90 = 25,540.20/x
  3. Step 3: Cross multiply
    60,640.20x = 90,927.90 × 25,540.20
  4. Step 4: Simplify right side
    60,640.20x = 2,322,316,751.58
  5. Step 5: Solve for x
    x = 2,322,316,751.58/60,640.20
  6. Step 6: Final answer
    x = 38,296.65

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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.