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Finding the Fourth Proportional to 14,707.71, 20,296.98 and 8,744.49

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Solution

The fourth proportional to 14,707.71, 20,296.98 and 8,744.49 is: 12,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.71 : 20,296.98 = 8,744.49 : x
  2. Step 2: Convert to fraction form
    14,707.71/20,296.98 = 8,744.49/x
  3. Step 3: Cross multiply
    14,707.71x = 20,296.98 × 8,744.49
  4. Step 4: Simplify right side
    14,707.71x = 177,486,738.64
  5. Step 5: Solve for x
    x = 177,486,738.64/14,707.71
  6. Step 6: Final answer
    x = 12,067.60

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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.