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Finding the Fourth Proportional to 8,998.68, 12,424.32 and 5,819.68

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Solution

The fourth proportional to 8,998.68, 12,424.32 and 5,819.68 is: 8,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.68 : 12,424.32 = 5,819.68 : x
  2. Step 2: Convert to fraction form
    8,998.68/12,424.32 = 5,819.68/x
  3. Step 3: Cross multiply
    8,998.68x = 12,424.32 × 5,819.68
  4. Step 4: Simplify right side
    8,998.68x = 72,305,566.62
  5. Step 5: Solve for x
    x = 72,305,566.62/8,998.68
  6. Step 6: Final answer
    x = 8,035.13

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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.