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Finding the Fourth Proportional to 9,797.64, 13,520.66 and 5,321.30

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Solution

The fourth proportional to 9,797.64, 13,520.66 and 5,321.30 is: 7,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,797.64 : 13,520.66 = 5,321.30 : x
  2. Step 2: Convert to fraction form
    9,797.64/13,520.66 = 5,321.30/x
  3. Step 3: Cross multiply
    9,797.64x = 13,520.66 × 5,321.30
  4. Step 4: Simplify right side
    9,797.64x = 71,947,488.06
  5. Step 5: Solve for x
    x = 71,947,488.06/9,797.64
  6. Step 6: Final answer
    x = 7,343.35

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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.