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Finding the Fourth Proportional to 9,518.75, 13,135.92 and 5,327

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Solution

The fourth proportional to 9,518.75, 13,135.92 and 5,327 is: 7,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.75 : 13,135.92 = 5,327 : x
  2. Step 2: Convert to fraction form
    9,518.75/13,135.92 = 5,327/x
  3. Step 3: Cross multiply
    9,518.75x = 13,135.92 × 5,327
  4. Step 4: Simplify right side
    9,518.75x = 69,975,045.84
  5. Step 5: Solve for x
    x = 69,975,045.84/9,518.75
  6. Step 6: Final answer
    x = 7,351.29

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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.