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Finding the Fourth Proportional to 5,553.84, 7,662.96 and 3,456.48

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Solution

The fourth proportional to 5,553.84, 7,662.96 and 3,456.48 is: 4,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.84 : 7,662.96 = 3,456.48 : x
  2. Step 2: Convert to fraction form
    5,553.84/7,662.96 = 3,456.48/x
  3. Step 3: Cross multiply
    5,553.84x = 7,662.96 × 3,456.48
  4. Step 4: Simplify right side
    5,553.84x = 26,486,867.98
  5. Step 5: Solve for x
    x = 26,486,867.98/5,553.84
  6. Step 6: Final answer
    x = 4,769.11

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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.