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Finding the Fourth Proportional to 6,259.37, 9,391.17 and 5,390.03

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Solution

The fourth proportional to 6,259.37, 9,391.17 and 5,390.03 is: 8,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,259.37 : 9,391.17 = 5,390.03 : x
  2. Step 2: Convert to fraction form
    6,259.37/9,391.17 = 5,390.03/x
  3. Step 3: Cross multiply
    6,259.37x = 9,391.17 × 5,390.03
  4. Step 4: Simplify right side
    6,259.37x = 50,618,641.08
  5. Step 5: Solve for x
    x = 50,618,641.08/6,259.37
  6. Step 6: Final answer
    x = 8,086.87

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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.