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Finding the Fourth Proportional to 17,838.90, 26,757.54 and 8,472.06

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Solution

The fourth proportional to 17,838.90, 26,757.54 and 8,472.06 is: 12,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.90 : 26,757.54 = 8,472.06 : x
  2. Step 2: Convert to fraction form
    17,838.90/26,757.54 = 8,472.06/x
  3. Step 3: Cross multiply
    17,838.90x = 26,757.54 × 8,472.06
  4. Step 4: Simplify right side
    17,838.90x = 226,691,484.33
  5. Step 5: Solve for x
    x = 226,691,484.33/17,838.90
  6. Step 6: Final answer
    x = 12,707.71

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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.