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Finding the Fourth Proportional to 8,566.32, 11,814.48 and 7,198.44

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Solution

The fourth proportional to 8,566.32, 11,814.48 and 7,198.44 is: 9,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.32 : 11,814.48 = 7,198.44 : x
  2. Step 2: Convert to fraction form
    8,566.32/11,814.48 = 7,198.44/x
  3. Step 3: Cross multiply
    8,566.32x = 11,814.48 × 7,198.44
  4. Step 4: Simplify right side
    8,566.32x = 85,045,825.41
  5. Step 5: Solve for x
    x = 85,045,825.41/8,566.32
  6. Step 6: Final answer
    x = 9,927.93

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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.