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Finding the Fourth Proportional to 34,481.88, 47,579.22 and 20,337.51

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Solution

The fourth proportional to 34,481.88, 47,579.22 and 20,337.51 is: 28,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.88 : 47,579.22 = 20,337.51 : x
  2. Step 2: Convert to fraction form
    34,481.88/47,579.22 = 20,337.51/x
  3. Step 3: Cross multiply
    34,481.88x = 47,579.22 × 20,337.51
  4. Step 4: Simplify right side
    34,481.88x = 967,642,862.54
  5. Step 5: Solve for x
    x = 967,642,862.54/34,481.88
  6. Step 6: Final answer
    x = 28,062.36

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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.