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Finding the Fourth Proportional to 5,974.94, 8,977.06 and 5,643.38

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Solution

The fourth proportional to 5,974.94, 8,977.06 and 5,643.38 is: 8,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,974.94 : 8,977.06 = 5,643.38 : x
  2. Step 2: Convert to fraction form
    5,974.94/8,977.06 = 5,643.38/x
  3. Step 3: Cross multiply
    5,974.94x = 8,977.06 × 5,643.38
  4. Step 4: Simplify right side
    5,974.94x = 50,660,960.86
  5. Step 5: Solve for x
    x = 50,660,960.86/5,974.94
  6. Step 6: Final answer
    x = 8,478.91

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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.