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Finding the Fourth Proportional to 34,751.28, 47,953.88 and 19,645.28

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Solution

The fourth proportional to 34,751.28, 47,953.88 and 19,645.28 is: 27,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.28 : 47,953.88 = 19,645.28 : x
  2. Step 2: Convert to fraction form
    34,751.28/47,953.88 = 19,645.28/x
  3. Step 3: Cross multiply
    34,751.28x = 47,953.88 × 19,645.28
  4. Step 4: Simplify right side
    34,751.28x = 942,067,399.69
  5. Step 5: Solve for x
    x = 942,067,399.69/34,751.28
  6. Step 6: Final answer
    x = 27,108.85

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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.