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Finding the Fourth Proportional to 8,566.43, 11,815.14 and 7,373.44

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Solution

The fourth proportional to 8,566.43, 11,815.14 and 7,373.44 is: 10,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.43 : 11,815.14 = 7,373.44 : x
  2. Step 2: Convert to fraction form
    8,566.43/11,815.14 = 7,373.44/x
  3. Step 3: Cross multiply
    8,566.43x = 11,815.14 × 7,373.44
  4. Step 4: Simplify right side
    8,566.43x = 87,118,268.30
  5. Step 5: Solve for x
    x = 87,118,268.30/8,566.43
  6. Step 6: Final answer
    x = 10,169.73

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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.