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Finding the Fourth Proportional to 6,625.95, 9,143.99 and 3,641.82

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Solution

The fourth proportional to 6,625.95, 9,143.99 and 3,641.82 is: 5,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.95 : 9,143.99 = 3,641.82 : x
  2. Step 2: Convert to fraction form
    6,625.95/9,143.99 = 3,641.82/x
  3. Step 3: Cross multiply
    6,625.95x = 9,143.99 × 3,641.82
  4. Step 4: Simplify right side
    6,625.95x = 33,300,765.66
  5. Step 5: Solve for x
    x = 33,300,765.66/6,625.95
  6. Step 6: Final answer
    x = 5,025.81

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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.