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Finding the Fourth Proportional to 1,941.66, 2,911 and 968.44

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Solution

The fourth proportional to 1,941.66, 2,911 and 968.44 is: 1,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.66 : 2,911 = 968.44 : x
  2. Step 2: Convert to fraction form
    1,941.66/2,911 = 968.44/x
  3. Step 3: Cross multiply
    1,941.66x = 2,911 × 968.44
  4. Step 4: Simplify right side
    1,941.66x = 2,819,128.84
  5. Step 5: Solve for x
    x = 2,819,128.84/1,941.66
  6. Step 6: Final answer
    x = 1,451.92

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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.