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Finding the Fourth Proportional to 35,324.70, 48,726.43 and 20,974.78

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Solution

The fourth proportional to 35,324.70, 48,726.43 and 20,974.78 is: 28,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,324.70 : 48,726.43 = 20,974.78 : x
  2. Step 2: Convert to fraction form
    35,324.70/48,726.43 = 20,974.78/x
  3. Step 3: Cross multiply
    35,324.70x = 48,726.43 × 20,974.78
  4. Step 4: Simplify right side
    35,324.70x = 1,022,026,149.44
  5. Step 5: Solve for x
    x = 1,022,026,149.44/35,324.70
  6. Step 6: Final answer
    x = 28,932.34

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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.