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Finding the Fourth Proportional to 9,413.70, 14,120.55 and 4,229.70

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Solution

The fourth proportional to 9,413.70, 14,120.55 and 4,229.70 is: 6,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.70 : 14,120.55 = 4,229.70 : x
  2. Step 2: Convert to fraction form
    9,413.70/14,120.55 = 4,229.70/x
  3. Step 3: Cross multiply
    9,413.70x = 14,120.55 × 4,229.70
  4. Step 4: Simplify right side
    9,413.70x = 59,725,690.34
  5. Step 5: Solve for x
    x = 59,725,690.34/9,413.70
  6. Step 6: Final answer
    x = 6,344.55

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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.