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Finding the Fourth Proportional to 2,666.01, 3,679.29 and 1,487.28

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Solution

The fourth proportional to 2,666.01, 3,679.29 and 1,487.28 is: 2,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.01 : 3,679.29 = 1,487.28 : x
  2. Step 2: Convert to fraction form
    2,666.01/3,679.29 = 1,487.28/x
  3. Step 3: Cross multiply
    2,666.01x = 3,679.29 × 1,487.28
  4. Step 4: Simplify right side
    2,666.01x = 5,472,134.43
  5. Step 5: Solve for x
    x = 5,472,134.43/2,666.01
  6. Step 6: Final answer
    x = 2,052.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.