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Finding the Fourth Proportional to 2,968.74, 4,453.14 and 2,878.52

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Solution

The fourth proportional to 2,968.74, 4,453.14 and 2,878.52 is: 4,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.74 : 4,453.14 = 2,878.52 : x
  2. Step 2: Convert to fraction form
    2,968.74/4,453.14 = 2,878.52/x
  3. Step 3: Cross multiply
    2,968.74x = 4,453.14 × 2,878.52
  4. Step 4: Simplify right side
    2,968.74x = 12,818,452.55
  5. Step 5: Solve for x
    x = 12,818,452.55/2,968.74
  6. Step 6: Final answer
    x = 4,317.81

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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.