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Finding the Fourth Proportional to 18,329.26, 27,493.88 and 6,642.46

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Solution

The fourth proportional to 18,329.26, 27,493.88 and 6,642.46 is: 9,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.26 : 27,493.88 = 6,642.46 : x
  2. Step 2: Convert to fraction form
    18,329.26/27,493.88 = 6,642.46/x
  3. Step 3: Cross multiply
    18,329.26x = 27,493.88 × 6,642.46
  4. Step 4: Simplify right side
    18,329.26x = 182,626,998.14
  5. Step 5: Solve for x
    x = 182,626,998.14/18,329.26
  6. Step 6: Final answer
    x = 9,963.69

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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.