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Finding the Fourth Proportional to 8,644.51, 12,965.55 and 4,934.71

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Solution

The fourth proportional to 8,644.51, 12,965.55 and 4,934.71 is: 7,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.51 : 12,965.55 = 4,934.71 : x
  2. Step 2: Convert to fraction form
    8,644.51/12,965.55 = 4,934.71/x
  3. Step 3: Cross multiply
    8,644.51x = 12,965.55 × 4,934.71
  4. Step 4: Simplify right side
    8,644.51x = 63,981,229.24
  5. Step 5: Solve for x
    x = 63,981,229.24/8,644.51
  6. Step 6: Final answer
    x = 7,401.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.