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Finding the Fourth Proportional to 17,408.96, 26,087.92 and 10,815.15

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Solution

The fourth proportional to 17,408.96, 26,087.92 and 10,815.15 is: 16,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,408.96 : 26,087.92 = 10,815.15 : x
  2. Step 2: Convert to fraction form
    17,408.96/26,087.92 = 10,815.15/x
  3. Step 3: Cross multiply
    17,408.96x = 26,087.92 × 10,815.15
  4. Step 4: Simplify right side
    17,408.96x = 282,144,899.62
  5. Step 5: Solve for x
    x = 282,144,899.62/17,408.96
  6. Step 6: Final answer
    x = 16,206.88

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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.