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Finding the Fourth Proportional to 26,212.70, 39,241.74 and 17,311.70

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Solution

The fourth proportional to 26,212.70, 39,241.74 and 17,311.70 is: 25,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,212.70 : 39,241.74 = 17,311.70 : x
  2. Step 2: Convert to fraction form
    26,212.70/39,241.74 = 17,311.70/x
  3. Step 3: Cross multiply
    26,212.70x = 39,241.74 × 17,311.70
  4. Step 4: Simplify right side
    26,212.70x = 679,341,230.36
  5. Step 5: Solve for x
    x = 679,341,230.36/26,212.70
  6. Step 6: Final answer
    x = 25,916.49

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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.