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Finding the Fourth Proportional to 7,449.28, 11,167.98 and 4,819.48

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Solution

The fourth proportional to 7,449.28, 11,167.98 and 4,819.48 is: 7,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.28 : 11,167.98 = 4,819.48 : x
  2. Step 2: Convert to fraction form
    7,449.28/11,167.98 = 4,819.48/x
  3. Step 3: Cross multiply
    7,449.28x = 11,167.98 × 4,819.48
  4. Step 4: Simplify right side
    7,449.28x = 53,823,856.25
  5. Step 5: Solve for x
    x = 53,823,856.25/7,449.28
  6. Step 6: Final answer
    x = 7,225.38

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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.