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Finding the Fourth Proportional to 4,879.02, 7,301.52 and 3,991.26

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Solution

The fourth proportional to 4,879.02, 7,301.52 and 3,991.26 is: 5,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.02 : 7,301.52 = 3,991.26 : x
  2. Step 2: Convert to fraction form
    4,879.02/7,301.52 = 3,991.26/x
  3. Step 3: Cross multiply
    4,879.02x = 7,301.52 × 3,991.26
  4. Step 4: Simplify right side
    4,879.02x = 29,142,264.72
  5. Step 5: Solve for x
    x = 29,142,264.72/4,879.02
  6. Step 6: Final answer
    x = 5,972.98

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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.