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Finding the Fourth Proportional to 2,968.94, 4,451.87 and 1,486.57

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Solution

The fourth proportional to 2,968.94, 4,451.87 and 1,486.57 is: 2,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.94 : 4,451.87 = 1,486.57 : x
  2. Step 2: Convert to fraction form
    2,968.94/4,451.87 = 1,486.57/x
  3. Step 3: Cross multiply
    2,968.94x = 4,451.87 × 1,486.57
  4. Step 4: Simplify right side
    2,968.94x = 6,617,986.69
  5. Step 5: Solve for x
    x = 6,617,986.69/2,968.94
  6. Step 6: Final answer
    x = 2,229.07

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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.