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Finding the Fourth Proportional to 5,938.61, 8,905.02 and 2,427.21

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Solution

The fourth proportional to 5,938.61, 8,905.02 and 2,427.21 is: 3,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.61 : 8,905.02 = 2,427.21 : x
  2. Step 2: Convert to fraction form
    5,938.61/8,905.02 = 2,427.21/x
  3. Step 3: Cross multiply
    5,938.61x = 8,905.02 × 2,427.21
  4. Step 4: Simplify right side
    5,938.61x = 21,614,344.49
  5. Step 5: Solve for x
    x = 21,614,344.49/5,938.61
  6. Step 6: Final answer
    x = 3,639.63

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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.