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Finding the Fourth Proportional to 16,788.17, 23,167.73 and 9,235.28

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Solution

The fourth proportional to 16,788.17, 23,167.73 and 9,235.28 is: 12,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,788.17 : 23,167.73 = 9,235.28 : x
  2. Step 2: Convert to fraction form
    16,788.17/23,167.73 = 9,235.28/x
  3. Step 3: Cross multiply
    16,788.17x = 23,167.73 × 9,235.28
  4. Step 4: Simplify right side
    16,788.17x = 213,960,415.69
  5. Step 5: Solve for x
    x = 213,960,415.69/16,788.17
  6. Step 6: Final answer
    x = 12,744.71

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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.