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Finding the Fourth Proportional to 7,318.77, 10,996.17 and 4,687.41

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Solution

The fourth proportional to 7,318.77, 10,996.17 and 4,687.41 is: 7,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.77 : 10,996.17 = 4,687.41 : x
  2. Step 2: Convert to fraction form
    7,318.77/10,996.17 = 4,687.41/x
  3. Step 3: Cross multiply
    7,318.77x = 10,996.17 × 4,687.41
  4. Step 4: Simplify right side
    7,318.77x = 51,543,557.22
  5. Step 5: Solve for x
    x = 51,543,557.22/7,318.77
  6. Step 6: Final answer
    x = 7,042.65

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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.