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Finding the Fourth Proportional to 12,397.56, 18,563.99 and 6,839.24

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Solution

The fourth proportional to 12,397.56, 18,563.99 and 6,839.24 is: 10,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.56 : 18,563.99 = 6,839.24 : x
  2. Step 2: Convert to fraction form
    12,397.56/18,563.99 = 6,839.24/x
  3. Step 3: Cross multiply
    12,397.56x = 18,563.99 × 6,839.24
  4. Step 4: Simplify right side
    12,397.56x = 126,963,455.95
  5. Step 5: Solve for x
    x = 126,963,455.95/12,397.56
  6. Step 6: Final answer
    x = 10,241.01

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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.