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Finding the Fourth Proportional to 1,967.64, 2,952.21 and 735.60

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Solution

The fourth proportional to 1,967.64, 2,952.21 and 735.60 is: 1,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967.64 : 2,952.21 = 735.60 : x
  2. Step 2: Convert to fraction form
    1,967.64/2,952.21 = 735.60/x
  3. Step 3: Cross multiply
    1,967.64x = 2,952.21 × 735.60
  4. Step 4: Simplify right side
    1,967.64x = 2,171,645.68
  5. Step 5: Solve for x
    x = 2,171,645.68/1,967.64
  6. Step 6: Final answer
    x = 1,103.68

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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.