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Finding the Fourth Proportional to 11,227.20, 15,493.20 and 6,259.20

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Solution

The fourth proportional to 11,227.20, 15,493.20 and 6,259.20 is: 8,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.20 : 15,493.20 = 6,259.20 : x
  2. Step 2: Convert to fraction form
    11,227.20/15,493.20 = 6,259.20/x
  3. Step 3: Cross multiply
    11,227.20x = 15,493.20 × 6,259.20
  4. Step 4: Simplify right side
    11,227.20x = 96,975,037.44
  5. Step 5: Solve for x
    x = 96,975,037.44/11,227.20
  6. Step 6: Final answer
    x = 8,637.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.