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Finding the Fourth Proportional to 37,673.68, 51,989.52 and 20,906.68

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Solution

The fourth proportional to 37,673.68, 51,989.52 and 20,906.68 is: 28,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,673.68 : 51,989.52 = 20,906.68 : x
  2. Step 2: Convert to fraction form
    37,673.68/51,989.52 = 20,906.68/x
  3. Step 3: Cross multiply
    37,673.68x = 51,989.52 × 20,906.68
  4. Step 4: Simplify right side
    37,673.68x = 1,086,928,257.99
  5. Step 5: Solve for x
    x = 1,086,928,257.99/37,673.68
  6. Step 6: Final answer
    x = 28,851.13

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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.