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Finding the Fourth Proportional to 7,662.72, 11,489.92 and 2,395.46

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Solution

The fourth proportional to 7,662.72, 11,489.92 and 2,395.46 is: 3,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.72 : 11,489.92 = 2,395.46 : x
  2. Step 2: Convert to fraction form
    7,662.72/11,489.92 = 2,395.46/x
  3. Step 3: Cross multiply
    7,662.72x = 11,489.92 × 2,395.46
  4. Step 4: Simplify right side
    7,662.72x = 27,523,666.50
  5. Step 5: Solve for x
    x = 27,523,666.50/7,662.72
  6. Step 6: Final answer
    x = 3,591.89

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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.