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Finding the Fourth Proportional to 2,637.14, 3,955.97 and 881.66

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Solution

The fourth proportional to 2,637.14, 3,955.97 and 881.66 is: 1,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.14 : 3,955.97 = 881.66 : x
  2. Step 2: Convert to fraction form
    2,637.14/3,955.97 = 881.66/x
  3. Step 3: Cross multiply
    2,637.14x = 3,955.97 × 881.66
  4. Step 4: Simplify right side
    2,637.14x = 3,487,832.60
  5. Step 5: Solve for x
    x = 3,487,832.60/2,637.14
  6. Step 6: Final answer
    x = 1,322.58

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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.