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Finding the Fourth Proportional to 37,243.89, 51,391.22 and 21,921.33

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Solution

The fourth proportional to 37,243.89, 51,391.22 and 21,921.33 is: 30,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,243.89 : 51,391.22 = 21,921.33 : x
  2. Step 2: Convert to fraction form
    37,243.89/51,391.22 = 21,921.33/x
  3. Step 3: Cross multiply
    37,243.89x = 51,391.22 × 21,921.33
  4. Step 4: Simplify right side
    37,243.89x = 1,126,563,892.72
  5. Step 5: Solve for x
    x = 1,126,563,892.72/37,243.89
  6. Step 6: Final answer
    x = 30,248.29

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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.