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Finding the Fourth Proportional to 60,427.20, 90,640.80 and 44,680.80

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Solution

The fourth proportional to 60,427.20, 90,640.80 and 44,680.80 is: 67,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,427.20 : 90,640.80 = 44,680.80 : x
  2. Step 2: Convert to fraction form
    60,427.20/90,640.80 = 44,680.80/x
  3. Step 3: Cross multiply
    60,427.20x = 90,640.80 × 44,680.80
  4. Step 4: Simplify right side
    60,427.20x = 4,049,903,456.64
  5. Step 5: Solve for x
    x = 4,049,903,456.64/60,427.20
  6. Step 6: Final answer
    x = 67,021.20

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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.