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Finding the Fourth Proportional to 6,267.30, 8,629.18 and 5,321.12

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Solution

The fourth proportional to 6,267.30, 8,629.18 and 5,321.12 is: 7,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,267.30 : 8,629.18 = 5,321.12 : x
  2. Step 2: Convert to fraction form
    6,267.30/8,629.18 = 5,321.12/x
  3. Step 3: Cross multiply
    6,267.30x = 8,629.18 × 5,321.12
  4. Step 4: Simplify right side
    6,267.30x = 45,916,902.28
  5. Step 5: Solve for x
    x = 45,916,902.28/6,267.30
  6. Step 6: Final answer
    x = 7,326.42

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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.