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Finding the Fourth Proportional to 17,745.69, 26,605.17 and 10,724.21

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Solution

The fourth proportional to 17,745.69, 26,605.17 and 10,724.21 is: 16,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.69 : 26,605.17 = 10,724.21 : x
  2. Step 2: Convert to fraction form
    17,745.69/26,605.17 = 10,724.21/x
  3. Step 3: Cross multiply
    17,745.69x = 26,605.17 × 10,724.21
  4. Step 4: Simplify right side
    17,745.69x = 285,319,430.17
  5. Step 5: Solve for x
    x = 285,319,430.17/17,745.69
  6. Step 6: Final answer
    x = 16,078.24

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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.