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Finding the Fourth Proportional to 7,413.67, 11,120.52 and 1,866.97

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Solution

The fourth proportional to 7,413.67, 11,120.52 and 1,866.97 is: 2,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.67 : 11,120.52 = 1,866.97 : x
  2. Step 2: Convert to fraction form
    7,413.67/11,120.52 = 1,866.97/x
  3. Step 3: Cross multiply
    7,413.67x = 11,120.52 × 1,866.97
  4. Step 4: Simplify right side
    7,413.67x = 20,761,677.22
  5. Step 5: Solve for x
    x = 20,761,677.22/7,413.67
  6. Step 6: Final answer
    x = 2,800.46

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Double scale
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Similar ratio
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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.