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Finding the Fourth Proportional to 9,796.62, 13,519.38 and 5,320.40

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Solution

The fourth proportional to 9,796.62, 13,519.38 and 5,320.40 is: 7,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,796.62 : 13,519.38 = 5,320.40 : x
  2. Step 2: Convert to fraction form
    9,796.62/13,519.38 = 5,320.40/x
  3. Step 3: Cross multiply
    9,796.62x = 13,519.38 × 5,320.40
  4. Step 4: Simplify right side
    9,796.62x = 71,928,509.35
  5. Step 5: Solve for x
    x = 71,928,509.35/9,796.62
  6. Step 6: Final answer
    x = 7,342.18

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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.