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Finding the Fourth Proportional to 16,972.74, 23,416.29 and 9,520.74

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Solution

The fourth proportional to 16,972.74, 23,416.29 and 9,520.74 is: 13,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.74 : 23,416.29 = 9,520.74 : x
  2. Step 2: Convert to fraction form
    16,972.74/23,416.29 = 9,520.74/x
  3. Step 3: Cross multiply
    16,972.74x = 23,416.29 × 9,520.74
  4. Step 4: Simplify right side
    16,972.74x = 222,940,408.85
  5. Step 5: Solve for x
    x = 222,940,408.85/16,972.74
  6. Step 6: Final answer
    x = 13,135.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.