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Finding the Fourth Proportional to 12,413.34, 18,619.99 and 5,392.46

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Solution

The fourth proportional to 12,413.34, 18,619.99 and 5,392.46 is: 8,088.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.34 : 18,619.99 = 5,392.46 : x
  2. Step 2: Convert to fraction form
    12,413.34/18,619.99 = 5,392.46/x
  3. Step 3: Cross multiply
    12,413.34x = 18,619.99 × 5,392.46
  4. Step 4: Simplify right side
    12,413.34x = 100,407,551.28
  5. Step 5: Solve for x
    x = 100,407,551.28/12,413.34
  6. Step 6: Final answer
    x = 8,088.68

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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.