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Finding the Fourth Proportional to 38,413.75, 57,621.03 and 10,711.75

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Solution

The fourth proportional to 38,413.75, 57,621.03 and 10,711.75 is: 16,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,413.75 : 57,621.03 = 10,711.75 : x
  2. Step 2: Convert to fraction form
    38,413.75/57,621.03 = 10,711.75/x
  3. Step 3: Cross multiply
    38,413.75x = 57,621.03 × 10,711.75
  4. Step 4: Simplify right side
    38,413.75x = 617,222,068.10
  5. Step 5: Solve for x
    x = 617,222,068.10/38,413.75
  6. Step 6: Final answer
    x = 16,067.74

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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.