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Finding the Fourth Proportional to 8,668.17, 11,962.05 and 4,689.27

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Solution

The fourth proportional to 8,668.17, 11,962.05 and 4,689.27 is: 6,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.17 : 11,962.05 = 4,689.27 : x
  2. Step 2: Convert to fraction form
    8,668.17/11,962.05 = 4,689.27/x
  3. Step 3: Cross multiply
    8,668.17x = 11,962.05 × 4,689.27
  4. Step 4: Simplify right side
    8,668.17x = 56,093,282.20
  5. Step 5: Solve for x
    x = 56,093,282.20/8,668.17
  6. Step 6: Final answer
    x = 6,471.18

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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.