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Finding the Fourth Proportional to 53,763.20, 80,491.20 and 48,233.60

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Solution

The fourth proportional to 53,763.20, 80,491.20 and 48,233.60 is: 72,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,763.20 : 80,491.20 = 48,233.60 : x
  2. Step 2: Convert to fraction form
    53,763.20/80,491.20 = 48,233.60/x
  3. Step 3: Cross multiply
    53,763.20x = 80,491.20 × 48,233.60
  4. Step 4: Simplify right side
    53,763.20x = 3,882,380,344.32
  5. Step 5: Solve for x
    x = 3,882,380,344.32/53,763.20
  6. Step 6: Final answer
    x = 72,212.60

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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.