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Finding the Fourth Proportional to 8,797.12, 12,140.32 and 5,929.68

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Solution

The fourth proportional to 8,797.12, 12,140.32 and 5,929.68 is: 8,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.12 : 12,140.32 = 5,929.68 : x
  2. Step 2: Convert to fraction form
    8,797.12/12,140.32 = 5,929.68/x
  3. Step 3: Cross multiply
    8,797.12x = 12,140.32 × 5,929.68
  4. Step 4: Simplify right side
    8,797.12x = 71,988,212.70
  5. Step 5: Solve for x
    x = 71,988,212.70/8,797.12
  6. Step 6: Final answer
    x = 8,183.16

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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.