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Finding the Fourth Proportional to 53,937.20, 80,905.80 and 48,234.80

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Solution

The fourth proportional to 53,937.20, 80,905.80 and 48,234.80 is: 72,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,937.20 : 80,905.80 = 48,234.80 : x
  2. Step 2: Convert to fraction form
    53,937.20/80,905.80 = 48,234.80/x
  3. Step 3: Cross multiply
    53,937.20x = 80,905.80 × 48,234.80
  4. Step 4: Simplify right side
    53,937.20x = 3,902,475,081.84
  5. Step 5: Solve for x
    x = 3,902,475,081.84/53,937.20
  6. Step 6: Final answer
    x = 72,352.20

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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.