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Finding the Fourth Proportional to 5,553.81, 7,664.27 and 3,069.81

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Solution

The fourth proportional to 5,553.81, 7,664.27 and 3,069.81 is: 4,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.81 : 7,664.27 = 3,069.81 : x
  2. Step 2: Convert to fraction form
    5,553.81/7,664.27 = 3,069.81/x
  3. Step 3: Cross multiply
    5,553.81x = 7,664.27 × 3,069.81
  4. Step 4: Simplify right side
    5,553.81x = 23,527,837.34
  5. Step 5: Solve for x
    x = 23,527,837.34/5,553.81
  6. Step 6: Final answer
    x = 4,236.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.