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Finding the Fourth Proportional to 8,585.88, 11,853.99 and 6,699.39

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Solution

The fourth proportional to 8,585.88, 11,853.99 and 6,699.39 is: 9,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.88 : 11,853.99 = 6,699.39 : x
  2. Step 2: Convert to fraction form
    8,585.88/11,853.99 = 6,699.39/x
  3. Step 3: Cross multiply
    8,585.88x = 11,853.99 × 6,699.39
  4. Step 4: Simplify right side
    8,585.88x = 79,414,502.07
  5. Step 5: Solve for x
    x = 79,414,502.07/8,585.88
  6. Step 6: Final answer
    x = 9,249.43

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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.