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Finding the Fourth Proportional to 17,408.70, 26,113.05 and 15,513.30

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Solution

The fourth proportional to 17,408.70, 26,113.05 and 15,513.30 is: 23,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,408.70 : 26,113.05 = 15,513.30 : x
  2. Step 2: Convert to fraction form
    17,408.70/26,113.05 = 15,513.30/x
  3. Step 3: Cross multiply
    17,408.70x = 26,113.05 × 15,513.30
  4. Step 4: Simplify right side
    17,408.70x = 405,099,578.57
  5. Step 5: Solve for x
    x = 405,099,578.57/17,408.70
  6. Step 6: Final answer
    x = 23,269.95

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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.