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Finding the Fourth Proportional to 3,241.64, 4,862.49 and 933.14

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Solution

The fourth proportional to 3,241.64, 4,862.49 and 933.14 is: 1,399.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.64 : 4,862.49 = 933.14 : x
  2. Step 2: Convert to fraction form
    3,241.64/4,862.49 = 933.14/x
  3. Step 3: Cross multiply
    3,241.64x = 4,862.49 × 933.14
  4. Step 4: Simplify right side
    3,241.64x = 4,537,383.92
  5. Step 5: Solve for x
    x = 4,537,383.92/3,241.64
  6. Step 6: Final answer
    x = 1,399.72

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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.