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Finding the Fourth Proportional to 34,805.67, 48,031.34 and 18,889.71

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Solution

The fourth proportional to 34,805.67, 48,031.34 and 18,889.71 is: 26,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,805.67 : 48,031.34 = 18,889.71 : x
  2. Step 2: Convert to fraction form
    34,805.67/48,031.34 = 18,889.71/x
  3. Step 3: Cross multiply
    34,805.67x = 48,031.34 × 18,889.71
  4. Step 4: Simplify right side
    34,805.67x = 907,297,989.06
  5. Step 5: Solve for x
    x = 907,297,989.06/34,805.67
  6. Step 6: Final answer
    x = 26,067.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.