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Finding the Fourth Proportional to 19,992.77, 27,569.31 and 17,169.49

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Solution

The fourth proportional to 19,992.77, 27,569.31 and 17,169.49 is: 23,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.77 : 27,569.31 = 17,169.49 : x
  2. Step 2: Convert to fraction form
    19,992.77/27,569.31 = 17,169.49/x
  3. Step 3: Cross multiply
    19,992.77x = 27,569.31 × 17,169.49
  4. Step 4: Simplify right side
    19,992.77x = 473,350,903.93
  5. Step 5: Solve for x
    x = 473,350,903.93/19,992.77
  6. Step 6: Final answer
    x = 23,676.10

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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.