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Finding the Fourth Proportional to 8,376.48, 12,558.24 and 3,996

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Solution

The fourth proportional to 8,376.48, 12,558.24 and 3,996 is: 5,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.48 : 12,558.24 = 3,996 : x
  2. Step 2: Convert to fraction form
    8,376.48/12,558.24 = 3,996/x
  3. Step 3: Cross multiply
    8,376.48x = 12,558.24 × 3,996
  4. Step 4: Simplify right side
    8,376.48x = 50,182,727.04
  5. Step 5: Solve for x
    x = 50,182,727.04/8,376.48
  6. Step 6: Final answer
    x = 5,990.91

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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.