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Finding the Fourth Proportional to 7,224.84, 10,789.02 and 6,855.81

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Solution

The fourth proportional to 7,224.84, 10,789.02 and 6,855.81 is: 10,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.84 : 10,789.02 = 6,855.81 : x
  2. Step 2: Convert to fraction form
    7,224.84/10,789.02 = 6,855.81/x
  3. Step 3: Cross multiply
    7,224.84x = 10,789.02 × 6,855.81
  4. Step 4: Simplify right side
    7,224.84x = 73,967,471.21
  5. Step 5: Solve for x
    x = 73,967,471.21/7,224.84
  6. Step 6: Final answer
    x = 10,237.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.