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Finding the Fourth Proportional to 17,172.22, 23,696.07 and 9,720.22

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Solution

The fourth proportional to 17,172.22, 23,696.07 and 9,720.22 is: 13,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.22 : 23,696.07 = 9,720.22 : x
  2. Step 2: Convert to fraction form
    17,172.22/23,696.07 = 9,720.22/x
  3. Step 3: Cross multiply
    17,172.22x = 23,696.07 × 9,720.22
  4. Step 4: Simplify right side
    17,172.22x = 230,331,013.54
  5. Step 5: Solve for x
    x = 230,331,013.54/17,172.22
  6. Step 6: Final answer
    x = 13,413.00

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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.