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Finding the Fourth Proportional to 2,936.64, 4,405.24 and 962.29

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Solution

The fourth proportional to 2,936.64, 4,405.24 and 962.29 is: 1,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.64 : 4,405.24 = 962.29 : x
  2. Step 2: Convert to fraction form
    2,936.64/4,405.24 = 962.29/x
  3. Step 3: Cross multiply
    2,936.64x = 4,405.24 × 962.29
  4. Step 4: Simplify right side
    2,936.64x = 4,239,118.40
  5. Step 5: Solve for x
    x = 4,239,118.40/2,936.64
  6. Step 6: Final answer
    x = 1,443.53

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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.