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Finding the Fourth Proportional to 52,286.60, 72,155.60 and 28,413.56

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Solution

The fourth proportional to 52,286.60, 72,155.60 and 28,413.56 is: 39,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.60 : 72,155.60 = 28,413.56 : x
  2. Step 2: Convert to fraction form
    52,286.60/72,155.60 = 28,413.56/x
  3. Step 3: Cross multiply
    52,286.60x = 72,155.60 × 28,413.56
  4. Step 4: Simplify right side
    52,286.60x = 2,050,197,469.94
  5. Step 5: Solve for x
    x = 2,050,197,469.94/52,286.60
  6. Step 6: Final answer
    x = 39,210.76

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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.