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Finding the Fourth Proportional to 8,355.66, 11,531.07 and 4,819.02

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Solution

The fourth proportional to 8,355.66, 11,531.07 and 4,819.02 is: 6,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.66 : 11,531.07 = 4,819.02 : x
  2. Step 2: Convert to fraction form
    8,355.66/11,531.07 = 4,819.02/x
  3. Step 3: Cross multiply
    8,355.66x = 11,531.07 × 4,819.02
  4. Step 4: Simplify right side
    8,355.66x = 55,568,456.95
  5. Step 5: Solve for x
    x = 55,568,456.95/8,355.66
  6. Step 6: Final answer
    x = 6,650.40

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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.