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Finding the Fourth Proportional to 71,768.56, 107,652.92 and 32,318.32

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Solution

The fourth proportional to 71,768.56, 107,652.92 and 32,318.32 is: 48,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,768.56 : 107,652.92 = 32,318.32 : x
  2. Step 2: Convert to fraction form
    71,768.56/107,652.92 = 32,318.32/x
  3. Step 3: Cross multiply
    71,768.56x = 107,652.92 × 32,318.32
  4. Step 4: Simplify right side
    71,768.56x = 3,479,161,517.49
  5. Step 5: Solve for x
    x = 3,479,161,517.49/71,768.56
  6. Step 6: Final answer
    x = 48,477.52

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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.