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Finding the Fourth Proportional to 8,716.68, 12,029.31 and 5,183.46

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Solution

The fourth proportional to 8,716.68, 12,029.31 and 5,183.46 is: 7,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.68 : 12,029.31 = 5,183.46 : x
  2. Step 2: Convert to fraction form
    8,716.68/12,029.31 = 5,183.46/x
  3. Step 3: Cross multiply
    8,716.68x = 12,029.31 × 5,183.46
  4. Step 4: Simplify right side
    8,716.68x = 62,353,447.21
  5. Step 5: Solve for x
    x = 62,353,447.21/8,716.68
  6. Step 6: Final answer
    x = 7,153.35

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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.