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Finding the Fourth Proportional to 8,951.91, 12,357.09 and 5,966.66

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Solution

The fourth proportional to 8,951.91, 12,357.09 and 5,966.66 is: 8,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.91 : 12,357.09 = 5,966.66 : x
  2. Step 2: Convert to fraction form
    8,951.91/12,357.09 = 5,966.66/x
  3. Step 3: Cross multiply
    8,951.91x = 12,357.09 × 5,966.66
  4. Step 4: Simplify right side
    8,951.91x = 73,730,492.83
  5. Step 5: Solve for x
    x = 73,730,492.83/8,951.91
  6. Step 6: Final answer
    x = 8,236.29

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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.