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Finding the Fourth Proportional to 2,908.71, 4,361.51 and 1,518.68

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Solution

The fourth proportional to 2,908.71, 4,361.51 and 1,518.68 is: 2,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.71 : 4,361.51 = 1,518.68 : x
  2. Step 2: Convert to fraction form
    2,908.71/4,361.51 = 1,518.68/x
  3. Step 3: Cross multiply
    2,908.71x = 4,361.51 × 1,518.68
  4. Step 4: Simplify right side
    2,908.71x = 6,623,752.71
  5. Step 5: Solve for x
    x = 6,623,752.71/2,908.71
  6. Step 6: Final answer
    x = 2,277.21

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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.