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Finding the Fourth Proportional to 9,313.80, 13,958.82 and 4,372.53

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Solution

The fourth proportional to 9,313.80, 13,958.82 and 4,372.53 is: 6,553.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.80 : 13,958.82 = 4,372.53 : x
  2. Step 2: Convert to fraction form
    9,313.80/13,958.82 = 4,372.53/x
  3. Step 3: Cross multiply
    9,313.80x = 13,958.82 × 4,372.53
  4. Step 4: Simplify right side
    9,313.80x = 61,035,359.21
  5. Step 5: Solve for x
    x = 61,035,359.21/9,313.80
  6. Step 6: Final answer
    x = 6,553.22

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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.