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Finding the Fourth Proportional to 2,942.33, 4,413.49 and 751.06

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Solution

The fourth proportional to 2,942.33, 4,413.49 and 751.06 is: 1,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.33 : 4,413.49 = 751.06 : x
  2. Step 2: Convert to fraction form
    2,942.33/4,413.49 = 751.06/x
  3. Step 3: Cross multiply
    2,942.33x = 4,413.49 × 751.06
  4. Step 4: Simplify right side
    2,942.33x = 3,314,780.60
  5. Step 5: Solve for x
    x = 3,314,780.60/2,942.33
  6. Step 6: Final answer
    x = 1,126.58

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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.