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Finding the Fourth Proportional to 8,393.22, 11,583.24 and 5,555.64

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Solution

The fourth proportional to 8,393.22, 11,583.24 and 5,555.64 is: 7,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.22 : 11,583.24 = 5,555.64 : x
  2. Step 2: Convert to fraction form
    8,393.22/11,583.24 = 5,555.64/x
  3. Step 3: Cross multiply
    8,393.22x = 11,583.24 × 5,555.64
  4. Step 4: Simplify right side
    8,393.22x = 64,352,311.47
  5. Step 5: Solve for x
    x = 64,352,311.47/8,393.22
  6. Step 6: Final answer
    x = 7,667.18

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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.