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Finding the Fourth Proportional to 33,605.40, 50,413.57 and 12,552.79

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Solution

The fourth proportional to 33,605.40, 50,413.57 and 12,552.79 is: 18,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,605.40 : 50,413.57 = 12,552.79 : x
  2. Step 2: Convert to fraction form
    33,605.40/50,413.57 = 12,552.79/x
  3. Step 3: Cross multiply
    33,605.40x = 50,413.57 × 12,552.79
  4. Step 4: Simplify right side
    33,605.40x = 632,830,965.08
  5. Step 5: Solve for x
    x = 632,830,965.08/33,605.40
  6. Step 6: Final answer
    x = 18,831.23

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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.