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Finding the Fourth Proportional to 5,608.68, 8,413.08 and 3,673.20

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Solution

The fourth proportional to 5,608.68, 8,413.08 and 3,673.20 is: 5,509.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.68 : 8,413.08 = 3,673.20 : x
  2. Step 2: Convert to fraction form
    5,608.68/8,413.08 = 3,673.20/x
  3. Step 3: Cross multiply
    5,608.68x = 8,413.08 × 3,673.20
  4. Step 4: Simplify right side
    5,608.68x = 30,902,925.46
  5. Step 5: Solve for x
    x = 30,902,925.46/5,608.68
  6. Step 6: Final answer
    x = 5,509.84

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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.