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Finding the Fourth Proportional to 17,756.74, 26,609.71 and 13,039.73

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Solution

The fourth proportional to 17,756.74, 26,609.71 and 13,039.73 is: 19,540.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,756.74 : 26,609.71 = 13,039.73 : x
  2. Step 2: Convert to fraction form
    17,756.74/26,609.71 = 13,039.73/x
  3. Step 3: Cross multiply
    17,756.74x = 26,609.71 × 13,039.73
  4. Step 4: Simplify right side
    17,756.74x = 346,983,433.78
  5. Step 5: Solve for x
    x = 346,983,433.78/17,756.74
  6. Step 6: Final answer
    x = 19,540.94

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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.