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Finding the Fourth Proportional to 26,806.59, 36,993.81 and 14,869.20

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Solution

The fourth proportional to 26,806.59, 36,993.81 and 14,869.20 is: 20,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,806.59 : 36,993.81 = 14,869.20 : x
  2. Step 2: Convert to fraction form
    26,806.59/36,993.81 = 14,869.20/x
  3. Step 3: Cross multiply
    26,806.59x = 36,993.81 × 14,869.20
  4. Step 4: Simplify right side
    26,806.59x = 550,068,359.65
  5. Step 5: Solve for x
    x = 550,068,359.65/26,806.59
  6. Step 6: Final answer
    x = 20,519.89

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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.