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Finding the Fourth Proportional to 9,796.49, 13,519.11 and 5,320.21

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Solution

The fourth proportional to 9,796.49, 13,519.11 and 5,320.21 is: 7,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,796.49 : 13,519.11 = 5,320.21 : x
  2. Step 2: Convert to fraction form
    9,796.49/13,519.11 = 5,320.21/x
  3. Step 3: Cross multiply
    9,796.49x = 13,519.11 × 5,320.21
  4. Step 4: Simplify right side
    9,796.49x = 71,924,436.62
  5. Step 5: Solve for x
    x = 71,924,436.62/9,796.49
  6. Step 6: Final answer
    x = 7,341.86

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1.5x scale

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.