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Finding the Fourth Proportional to 17,679.29, 26,483.42 and 8,178.29

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Solution

The fourth proportional to 17,679.29, 26,483.42 and 8,178.29 is: 12,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.29 : 26,483.42 = 8,178.29 : x
  2. Step 2: Convert to fraction form
    17,679.29/26,483.42 = 8,178.29/x
  3. Step 3: Cross multiply
    17,679.29x = 26,483.42 × 8,178.29
  4. Step 4: Simplify right side
    17,679.29x = 216,589,114.27
  5. Step 5: Solve for x
    x = 216,589,114.27/17,679.29
  6. Step 6: Final answer
    x = 12,251.01

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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.