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Finding the Fourth Proportional to 37,454.53, 51,687.30 and 20,687.53

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Solution

The fourth proportional to 37,454.53, 51,687.30 and 20,687.53 is: 28,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,454.53 : 51,687.30 = 20,687.53 : x
  2. Step 2: Convert to fraction form
    37,454.53/51,687.30 = 20,687.53/x
  3. Step 3: Cross multiply
    37,454.53x = 51,687.30 × 20,687.53
  4. Step 4: Simplify right side
    37,454.53x = 1,069,282,569.37
  5. Step 5: Solve for x
    x = 1,069,282,569.37/37,454.53
  6. Step 6: Final answer
    x = 28,548.82

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Why These Related Problems?

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