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Finding the Fourth Proportional to 17,192.80, 23,727.48 and 9,639

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Solution

The fourth proportional to 17,192.80, 23,727.48 and 9,639 is: 13,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,192.80 : 23,727.48 = 9,639 : x
  2. Step 2: Convert to fraction form
    17,192.80/23,727.48 = 9,639/x
  3. Step 3: Cross multiply
    17,192.80x = 23,727.48 × 9,639
  4. Step 4: Simplify right side
    17,192.80x = 228,709,179.72
  5. Step 5: Solve for x
    x = 228,709,179.72/17,192.80
  6. Step 6: Final answer
    x = 13,302.61

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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.