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Finding the Fourth Proportional to 17,169.72, 23,692.86 and 9,717.72

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Solution

The fourth proportional to 17,169.72, 23,692.86 and 9,717.72 is: 13,409.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169.72 : 23,692.86 = 9,717.72 : x
  2. Step 2: Convert to fraction form
    17,169.72/23,692.86 = 9,717.72/x
  3. Step 3: Cross multiply
    17,169.72x = 23,692.86 × 9,717.72
  4. Step 4: Simplify right side
    17,169.72x = 230,240,579.48
  5. Step 5: Solve for x
    x = 230,240,579.48/17,169.72
  6. Step 6: Final answer
    x = 13,409.69

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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.