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Finding the Fourth Proportional to 37,431.44, 51,655.42 and 20,664.44

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Solution

The fourth proportional to 37,431.44, 51,655.42 and 20,664.44 is: 28,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,431.44 : 51,655.42 = 20,664.44 : x
  2. Step 2: Convert to fraction form
    37,431.44/51,655.42 = 20,664.44/x
  3. Step 3: Cross multiply
    37,431.44x = 51,655.42 × 20,664.44
  4. Step 4: Simplify right side
    37,431.44x = 1,067,430,327.26
  5. Step 5: Solve for x
    x = 1,067,430,327.26/37,431.44
  6. Step 6: Final answer
    x = 28,516.95

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1.5x scale

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.