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Finding the Fourth Proportional to 11,567.66, 17,351.49 and 6,640.43

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Solution

The fourth proportional to 11,567.66, 17,351.49 and 6,640.43 is: 9,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,567.66 : 17,351.49 = 6,640.43 : x
  2. Step 2: Convert to fraction form
    11,567.66/17,351.49 = 6,640.43/x
  3. Step 3: Cross multiply
    11,567.66x = 17,351.49 × 6,640.43
  4. Step 4: Simplify right side
    11,567.66x = 115,221,354.74
  5. Step 5: Solve for x
    x = 115,221,354.74/11,567.66
  6. Step 6: Final answer
    x = 9,960.65

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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.