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Finding the Fourth Proportional to 7,662.99, 11,517.42 and 6,355.35

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Solution

The fourth proportional to 7,662.99, 11,517.42 and 6,355.35 is: 9,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.99 : 11,517.42 = 6,355.35 : x
  2. Step 2: Convert to fraction form
    7,662.99/11,517.42 = 6,355.35/x
  3. Step 3: Cross multiply
    7,662.99x = 11,517.42 × 6,355.35
  4. Step 4: Simplify right side
    7,662.99x = 73,197,235.20
  5. Step 5: Solve for x
    x = 73,197,235.20/7,662.99
  6. Step 6: Final answer
    x = 9,552.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.