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Finding the Fourth Proportional to 8,959.96, 12,364.68 and 5,183.08

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Solution

The fourth proportional to 8,959.96, 12,364.68 and 5,183.08 is: 7,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.96 : 12,364.68 = 5,183.08 : x
  2. Step 2: Convert to fraction form
    8,959.96/12,364.68 = 5,183.08/x
  3. Step 3: Cross multiply
    8,959.96x = 12,364.68 × 5,183.08
  4. Step 4: Simplify right side
    8,959.96x = 64,087,125.61
  5. Step 5: Solve for x
    x = 64,087,125.61/8,959.96
  6. Step 6: Final answer
    x = 7,152.61

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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.