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Finding the Fourth Proportional to 7,413.90, 11,120.87 and 6,020.62

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Solution

The fourth proportional to 7,413.90, 11,120.87 and 6,020.62 is: 9,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.90 : 11,120.87 = 6,020.62 : x
  2. Step 2: Convert to fraction form
    7,413.90/11,120.87 = 6,020.62/x
  3. Step 3: Cross multiply
    7,413.90x = 11,120.87 × 6,020.62
  4. Step 4: Simplify right side
    7,413.90x = 66,954,532.34
  5. Step 5: Solve for x
    x = 66,954,532.34/7,413.90
  6. Step 6: Final answer
    x = 9,030.95

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Half scale
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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.