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Finding the Fourth Proportional to 6,600.59, 9,111.66 and 3,947.48

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Solution

The fourth proportional to 6,600.59, 9,111.66 and 3,947.48 is: 5,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.59 : 9,111.66 = 3,947.48 : x
  2. Step 2: Convert to fraction form
    6,600.59/9,111.66 = 3,947.48/x
  3. Step 3: Cross multiply
    6,600.59x = 9,111.66 × 3,947.48
  4. Step 4: Simplify right side
    6,600.59x = 35,968,153.98
  5. Step 5: Solve for x
    x = 35,968,153.98/6,600.59
  6. Step 6: Final answer
    x = 5,449.23

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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.