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Finding the Fourth Proportional to 5,308.57, 7,962.72 and 1,413.01

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Solution

The fourth proportional to 5,308.57, 7,962.72 and 1,413.01 is: 2,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.57 : 7,962.72 = 1,413.01 : x
  2. Step 2: Convert to fraction form
    5,308.57/7,962.72 = 1,413.01/x
  3. Step 3: Cross multiply
    5,308.57x = 7,962.72 × 1,413.01
  4. Step 4: Simplify right side
    5,308.57x = 11,251,402.99
  5. Step 5: Solve for x
    x = 11,251,402.99/5,308.57
  6. Step 6: Final answer
    x = 2,119.48

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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.