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Finding the Fourth Proportional to 9,977.48, 14,968.14 and 3,821

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Solution

The fourth proportional to 9,977.48, 14,968.14 and 3,821 is: 5,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.48 : 14,968.14 = 3,821 : x
  2. Step 2: Convert to fraction form
    9,977.48/14,968.14 = 3,821/x
  3. Step 3: Cross multiply
    9,977.48x = 14,968.14 × 3,821
  4. Step 4: Simplify right side
    9,977.48x = 57,193,262.94
  5. Step 5: Solve for x
    x = 57,193,262.94/9,977.48
  6. Step 6: Final answer
    x = 5,732.24

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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.