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Finding the Fourth Proportional to 6,664.97, 9,981.90 and 5,268.93

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Solution

The fourth proportional to 6,664.97, 9,981.90 and 5,268.93 is: 7,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.97 : 9,981.90 = 5,268.93 : x
  2. Step 2: Convert to fraction form
    6,664.97/9,981.90 = 5,268.93/x
  3. Step 3: Cross multiply
    6,664.97x = 9,981.90 × 5,268.93
  4. Step 4: Simplify right side
    6,664.97x = 52,593,932.37
  5. Step 5: Solve for x
    x = 52,593,932.37/6,664.97
  6. Step 6: Final answer
    x = 7,891.10

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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.