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Finding the Fourth Proportional to 17,930.61, 26,896.05 and 6,243.80

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Solution

The fourth proportional to 17,930.61, 26,896.05 and 6,243.80 is: 9,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.61 : 26,896.05 = 6,243.80 : x
  2. Step 2: Convert to fraction form
    17,930.61/26,896.05 = 6,243.80/x
  3. Step 3: Cross multiply
    17,930.61x = 26,896.05 × 6,243.80
  4. Step 4: Simplify right side
    17,930.61x = 167,933,422.51
  5. Step 5: Solve for x
    x = 167,933,422.51/17,930.61
  6. Step 6: Final answer
    x = 9,365.74

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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.