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Finding the Fourth Proportional to 17,398.52, 23,993.64 and 13,413.32

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Solution

The fourth proportional to 17,398.52, 23,993.64 and 13,413.32 is: 18,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,398.52 : 23,993.64 = 13,413.32 : x
  2. Step 2: Convert to fraction form
    17,398.52/23,993.64 = 13,413.32/x
  3. Step 3: Cross multiply
    17,398.52x = 23,993.64 × 13,413.32
  4. Step 4: Simplify right side
    17,398.52x = 321,834,371.28
  5. Step 5: Solve for x
    x = 321,834,371.28/17,398.52
  6. Step 6: Final answer
    x = 18,497.80

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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.