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Finding the Fourth Proportional to 17,691.79, 26,540.93 and 7,297.87

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Solution

The fourth proportional to 17,691.79, 26,540.93 and 7,297.87 is: 10,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.79 : 26,540.93 = 7,297.87 : x
  2. Step 2: Convert to fraction form
    17,691.79/26,540.93 = 7,297.87/x
  3. Step 3: Cross multiply
    17,691.79x = 26,540.93 × 7,297.87
  4. Step 4: Simplify right side
    17,691.79x = 193,692,256.82
  5. Step 5: Solve for x
    x = 193,692,256.82/17,691.79
  6. Step 6: Final answer
    x = 10,948.14

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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.