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Finding the Fourth Proportional to 8,553.12, 11,800.80 and 5,016.48

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Solution

The fourth proportional to 8,553.12, 11,800.80 and 5,016.48 is: 6,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.12 : 11,800.80 = 5,016.48 : x
  2. Step 2: Convert to fraction form
    8,553.12/11,800.80 = 5,016.48/x
  3. Step 3: Cross multiply
    8,553.12x = 11,800.80 × 5,016.48
  4. Step 4: Simplify right side
    8,553.12x = 59,198,477.18
  5. Step 5: Solve for x
    x = 59,198,477.18/8,553.12
  6. Step 6: Final answer
    x = 6,921.27

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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.