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Finding the Fourth Proportional to 3,248.88, 4,871.88 and 1,518

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Solution

The fourth proportional to 3,248.88, 4,871.88 and 1,518 is: 2,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.88 : 4,871.88 = 1,518 : x
  2. Step 2: Convert to fraction form
    3,248.88/4,871.88 = 1,518/x
  3. Step 3: Cross multiply
    3,248.88x = 4,871.88 × 1,518
  4. Step 4: Simplify right side
    3,248.88x = 7,395,513.84
  5. Step 5: Solve for x
    x = 7,395,513.84/3,248.88
  6. Step 6: Final answer
    x = 2,276.33

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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.