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Finding the Fourth Proportional to 36,942.40, 55,413.60 and 29,425.60

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Solution

The fourth proportional to 36,942.40, 55,413.60 and 29,425.60 is: 44,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,942.40 : 55,413.60 = 29,425.60 : x
  2. Step 2: Convert to fraction form
    36,942.40/55,413.60 = 29,425.60/x
  3. Step 3: Cross multiply
    36,942.40x = 55,413.60 × 29,425.60
  4. Step 4: Simplify right side
    36,942.40x = 1,630,578,428.16
  5. Step 5: Solve for x
    x = 1,630,578,428.16/36,942.40
  6. Step 6: Final answer
    x = 44,138.40

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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.