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Finding the Fourth Proportional to 17,992.80, 26,986.15 and 4,842.24

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Solution

The fourth proportional to 17,992.80, 26,986.15 and 4,842.24 is: 7,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.80 : 26,986.15 = 4,842.24 : x
  2. Step 2: Convert to fraction form
    17,992.80/26,986.15 = 4,842.24/x
  3. Step 3: Cross multiply
    17,992.80x = 26,986.15 × 4,842.24
  4. Step 4: Simplify right side
    17,992.80x = 130,673,402.87
  5. Step 5: Solve for x
    x = 130,673,402.87/17,992.80
  6. Step 6: Final answer
    x = 7,262.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.