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Finding the Fourth Proportional to 17,897.10, 26,815.17 and 11,647.62

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Solution

The fourth proportional to 17,897.10, 26,815.17 and 11,647.62 is: 17,451.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.10 : 26,815.17 = 11,647.62 : x
  2. Step 2: Convert to fraction form
    17,897.10/26,815.17 = 11,647.62/x
  3. Step 3: Cross multiply
    17,897.10x = 26,815.17 × 11,647.62
  4. Step 4: Simplify right side
    17,897.10x = 312,332,910.40
  5. Step 5: Solve for x
    x = 312,332,910.40/17,897.10
  6. Step 6: Final answer
    x = 17,451.59

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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.