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Finding the Fourth Proportional to 7,662.58, 11,490.87 and 2,981.97

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Solution

The fourth proportional to 7,662.58, 11,490.87 and 2,981.97 is: 4,471.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.58 : 11,490.87 = 2,981.97 : x
  2. Step 2: Convert to fraction form
    7,662.58/11,490.87 = 2,981.97/x
  3. Step 3: Cross multiply
    7,662.58x = 11,490.87 × 2,981.97
  4. Step 4: Simplify right side
    7,662.58x = 34,265,429.61
  5. Step 5: Solve for x
    x = 34,265,429.61/7,662.58
  6. Step 6: Final answer
    x = 4,471.79

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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.