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Finding the Fourth Proportional to 5,662.97, 8,497.79 and 2,155.93

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Solution

The fourth proportional to 5,662.97, 8,497.79 and 2,155.93 is: 3,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.97 : 8,497.79 = 2,155.93 : x
  2. Step 2: Convert to fraction form
    5,662.97/8,497.79 = 2,155.93/x
  3. Step 3: Cross multiply
    5,662.97x = 8,497.79 × 2,155.93
  4. Step 4: Simplify right side
    5,662.97x = 18,320,624.54
  5. Step 5: Solve for x
    x = 18,320,624.54/5,662.97
  6. Step 6: Final answer
    x = 3,235.16

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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.