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Finding the Fourth Proportional to 56,481.20, 84,624.60 and 36,749.60

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Solution

The fourth proportional to 56,481.20, 84,624.60 and 36,749.60 is: 55,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,481.20 : 84,624.60 = 36,749.60 : x
  2. Step 2: Convert to fraction form
    56,481.20/84,624.60 = 36,749.60/x
  3. Step 3: Cross multiply
    56,481.20x = 84,624.60 × 36,749.60
  4. Step 4: Simplify right side
    56,481.20x = 3,109,920,200.16
  5. Step 5: Solve for x
    x = 3,109,920,200.16/56,481.20
  6. Step 6: Final answer
    x = 55,061.16

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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.