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Finding the Fourth Proportional to 17,479.78, 26,197.78 and 13,767.34

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Solution

The fourth proportional to 17,479.78, 26,197.78 and 13,767.34 is: 20,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.78 : 26,197.78 = 13,767.34 : x
  2. Step 2: Convert to fraction form
    17,479.78/26,197.78 = 13,767.34/x
  3. Step 3: Cross multiply
    17,479.78x = 26,197.78 × 13,767.34
  4. Step 4: Simplify right side
    17,479.78x = 360,673,744.51
  5. Step 5: Solve for x
    x = 360,673,744.51/17,479.78
  6. Step 6: Final answer
    x = 20,633.77

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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.