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Finding the Fourth Proportional to 11,404.70, 17,107.05 and 10,108.70

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Solution

The fourth proportional to 11,404.70, 17,107.05 and 10,108.70 is: 15,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,404.70 : 17,107.05 = 10,108.70 : x
  2. Step 2: Convert to fraction form
    11,404.70/17,107.05 = 10,108.70/x
  3. Step 3: Cross multiply
    11,404.70x = 17,107.05 × 10,108.70
  4. Step 4: Simplify right side
    11,404.70x = 172,930,036.34
  5. Step 5: Solve for x
    x = 172,930,036.34/11,404.70
  6. Step 6: Final answer
    x = 15,163.05

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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.