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Finding the Fourth Proportional to 37,991.49, 52,428.24 and 21,224.49

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Solution

The fourth proportional to 37,991.49, 52,428.24 and 21,224.49 is: 29,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,991.49 : 52,428.24 = 21,224.49 : x
  2. Step 2: Convert to fraction form
    37,991.49/52,428.24 = 21,224.49/x
  3. Step 3: Cross multiply
    37,991.49x = 52,428.24 × 21,224.49
  4. Step 4: Simplify right side
    37,991.49x = 1,112,762,655.60
  5. Step 5: Solve for x
    x = 1,112,762,655.60/37,991.49
  6. Step 6: Final answer
    x = 29,289.79

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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.