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Finding the Fourth Proportional to 69,413.16, 104,119.74 and 16,822.64

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Solution

The fourth proportional to 69,413.16, 104,119.74 and 16,822.64 is: 25,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,413.16 : 104,119.74 = 16,822.64 : x
  2. Step 2: Convert to fraction form
    69,413.16/104,119.74 = 16,822.64/x
  3. Step 3: Cross multiply
    69,413.16x = 104,119.74 × 16,822.64
  4. Step 4: Simplify right side
    69,413.16x = 1,751,569,079.10
  5. Step 5: Solve for x
    x = 1,751,569,079.10/69,413.16
  6. Step 6: Final answer
    x = 25,233.96

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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.