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Finding the Fourth Proportional to 65,553.28, 98,428.38 and 37,505

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Solution

The fourth proportional to 65,553.28, 98,428.38 and 37,505 is: 56,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,553.28 : 98,428.38 = 37,505 : x
  2. Step 2: Convert to fraction form
    65,553.28/98,428.38 = 37,505/x
  3. Step 3: Cross multiply
    65,553.28x = 98,428.38 × 37,505
  4. Step 4: Simplify right side
    65,553.28x = 3,691,556,391.90
  5. Step 5: Solve for x
    x = 3,691,556,391.90/65,553.28
  6. Step 6: Final answer
    x = 56,313.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.