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Finding the Fourth Proportional to 17,693.68, 26,540.52 and 7,843

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Solution

The fourth proportional to 17,693.68, 26,540.52 and 7,843 is: 11,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,693.68 : 26,540.52 = 7,843 : x
  2. Step 2: Convert to fraction form
    17,693.68/26,540.52 = 7,843/x
  3. Step 3: Cross multiply
    17,693.68x = 26,540.52 × 7,843
  4. Step 4: Simplify right side
    17,693.68x = 208,157,298.36
  5. Step 5: Solve for x
    x = 208,157,298.36/17,693.68
  6. Step 6: Final answer
    x = 11,764.50

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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.