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Finding the Fourth Proportional to 8,553.33, 11,803.68 and 4,919.93

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Solution

The fourth proportional to 8,553.33, 11,803.68 and 4,919.93 is: 6,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.33 : 11,803.68 = 4,919.93 : x
  2. Step 2: Convert to fraction form
    8,553.33/11,803.68 = 4,919.93/x
  3. Step 3: Cross multiply
    8,553.33x = 11,803.68 × 4,919.93
  4. Step 4: Simplify right side
    8,553.33x = 58,073,279.34
  5. Step 5: Solve for x
    x = 58,073,279.34/8,553.33
  6. Step 6: Final answer
    x = 6,789.55

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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.