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Finding the Fourth Proportional to 6,309.83, 8,707.73 and 3,621.26

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Solution

The fourth proportional to 6,309.83, 8,707.73 and 3,621.26 is: 4,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.83 : 8,707.73 = 3,621.26 : x
  2. Step 2: Convert to fraction form
    6,309.83/8,707.73 = 3,621.26/x
  3. Step 3: Cross multiply
    6,309.83x = 8,707.73 × 3,621.26
  4. Step 4: Simplify right side
    6,309.83x = 31,532,958.00
  5. Step 5: Solve for x
    x = 31,532,958.00/6,309.83
  6. Step 6: Final answer
    x = 4,997.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.