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Finding the Fourth Proportional to 5,391.01, 7,399.85 and 4,788.37

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Solution

The fourth proportional to 5,391.01, 7,399.85 and 4,788.37 is: 6,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.01 : 7,399.85 = 4,788.37 : x
  2. Step 2: Convert to fraction form
    5,391.01/7,399.85 = 4,788.37/x
  3. Step 3: Cross multiply
    5,391.01x = 7,399.85 × 4,788.37
  4. Step 4: Simplify right side
    5,391.01x = 35,433,218.52
  5. Step 5: Solve for x
    x = 35,433,218.52/5,391.01
  6. Step 6: Final answer
    x = 6,572.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.