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Finding the Fourth Proportional to 9,398.29, 12,963.94 and 6,211.62

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Solution

The fourth proportional to 9,398.29, 12,963.94 and 6,211.62 is: 8,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.29 : 12,963.94 = 6,211.62 : x
  2. Step 2: Convert to fraction form
    9,398.29/12,963.94 = 6,211.62/x
  3. Step 3: Cross multiply
    9,398.29x = 12,963.94 × 6,211.62
  4. Step 4: Simplify right side
    9,398.29x = 80,527,068.98
  5. Step 5: Solve for x
    x = 80,527,068.98/9,398.29
  6. Step 6: Final answer
    x = 8,568.27

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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.