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Finding the Fourth Proportional to 5,546.88, 8,305.92 and 4,389.12

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Solution

The fourth proportional to 5,546.88, 8,305.92 and 4,389.12 is: 6,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,546.88 : 8,305.92 = 4,389.12 : x
  2. Step 2: Convert to fraction form
    5,546.88/8,305.92 = 4,389.12/x
  3. Step 3: Cross multiply
    5,546.88x = 8,305.92 × 4,389.12
  4. Step 4: Simplify right side
    5,546.88x = 36,455,679.59
  5. Step 5: Solve for x
    x = 36,455,679.59/5,546.88
  6. Step 6: Final answer
    x = 6,572.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.