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Finding the Fourth Proportional to 10,422.38, 14,384.25 and 5,945.10

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Solution

The fourth proportional to 10,422.38, 14,384.25 and 5,945.10 is: 8,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.38 : 14,384.25 = 5,945.10 : x
  2. Step 2: Convert to fraction form
    10,422.38/14,384.25 = 5,945.10/x
  3. Step 3: Cross multiply
    10,422.38x = 14,384.25 × 5,945.10
  4. Step 4: Simplify right side
    10,422.38x = 85,515,804.68
  5. Step 5: Solve for x
    x = 85,515,804.68/10,422.38
  6. Step 6: Final answer
    x = 8,205.02

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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.