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Finding the Fourth Proportional to 26,948.70, 40,408.65 and 11,348.70

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Solution

The fourth proportional to 26,948.70, 40,408.65 and 11,348.70 is: 17,016.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,948.70 : 40,408.65 = 11,348.70 : x
  2. Step 2: Convert to fraction form
    26,948.70/40,408.65 = 11,348.70/x
  3. Step 3: Cross multiply
    26,948.70x = 40,408.65 × 11,348.70
  4. Step 4: Simplify right side
    26,948.70x = 458,585,646.26
  5. Step 5: Solve for x
    x = 458,585,646.26/26,948.70
  6. Step 6: Final answer
    x = 17,016.99

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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.