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Finding the Fourth Proportional to 8,224.78, 11,350.14 and 4,498.78

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Solution

The fourth proportional to 8,224.78, 11,350.14 and 4,498.78 is: 6,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,224.78 : 11,350.14 = 4,498.78 : x
  2. Step 2: Convert to fraction form
    8,224.78/11,350.14 = 4,498.78/x
  3. Step 3: Cross multiply
    8,224.78x = 11,350.14 × 4,498.78
  4. Step 4: Simplify right side
    8,224.78x = 51,061,782.83
  5. Step 5: Solve for x
    x = 51,061,782.83/8,224.78
  6. Step 6: Final answer
    x = 6,208.29

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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.