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Finding the Fourth Proportional to 8,876.84, 12,246.30 and 5,894.28

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Solution

The fourth proportional to 8,876.84, 12,246.30 and 5,894.28 is: 8,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.84 : 12,246.30 = 5,894.28 : x
  2. Step 2: Convert to fraction form
    8,876.84/12,246.30 = 5,894.28/x
  3. Step 3: Cross multiply
    8,876.84x = 12,246.30 × 5,894.28
  4. Step 4: Simplify right side
    8,876.84x = 72,183,121.16
  5. Step 5: Solve for x
    x = 72,183,121.16/8,876.84
  6. Step 6: Final answer
    x = 8,131.63

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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.