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Finding the Fourth Proportional to 17,939.37, 26,909.73 and 9,164.03

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Solution

The fourth proportional to 17,939.37, 26,909.73 and 9,164.03 is: 13,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.37 : 26,909.73 = 9,164.03 : x
  2. Step 2: Convert to fraction form
    17,939.37/26,909.73 = 9,164.03/x
  3. Step 3: Cross multiply
    17,939.37x = 26,909.73 × 9,164.03
  4. Step 4: Simplify right side
    17,939.37x = 246,601,573.01
  5. Step 5: Solve for x
    x = 246,601,573.01/17,939.37
  6. Step 6: Final answer
    x = 13,746.39

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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.