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Finding the Fourth Proportional to 9,605.16, 13,255.08 and 5,413.36

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Solution

The fourth proportional to 9,605.16, 13,255.08 and 5,413.36 is: 7,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.16 : 13,255.08 = 5,413.36 : x
  2. Step 2: Convert to fraction form
    9,605.16/13,255.08 = 5,413.36/x
  3. Step 3: Cross multiply
    9,605.16x = 13,255.08 × 5,413.36
  4. Step 4: Simplify right side
    9,605.16x = 71,754,519.87
  5. Step 5: Solve for x
    x = 71,754,519.87/9,605.16
  6. Step 6: Final answer
    x = 7,470.41

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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.