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Finding the Fourth Proportional to 55,270.60, 82,905.90 and 50,432.20

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Solution

The fourth proportional to 55,270.60, 82,905.90 and 50,432.20 is: 75,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,270.60 : 82,905.90 = 50,432.20 : x
  2. Step 2: Convert to fraction form
    55,270.60/82,905.90 = 50,432.20/x
  3. Step 3: Cross multiply
    55,270.60x = 82,905.90 × 50,432.20
  4. Step 4: Simplify right side
    55,270.60x = 4,181,126,929.98
  5. Step 5: Solve for x
    x = 4,181,126,929.98/55,270.60
  6. Step 6: Final answer
    x = 75,648.30

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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.