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Finding the Fourth Proportional to 37,455.26, 51,687.27 and 20,687.90

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Solution

The fourth proportional to 37,455.26, 51,687.27 and 20,687.90 is: 28,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,455.26 : 51,687.27 = 20,687.90 : x
  2. Step 2: Convert to fraction form
    37,455.26/51,687.27 = 20,687.90/x
  3. Step 3: Cross multiply
    37,455.26x = 51,687.27 × 20,687.90
  4. Step 4: Simplify right side
    37,455.26x = 1,069,301,073.03
  5. Step 5: Solve for x
    x = 1,069,301,073.03/37,455.26
  6. Step 6: Final answer
    x = 28,548.76

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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.