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Finding the Fourth Proportional to 34,671.78, 47,843.46 and 19,565.28

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Solution

The fourth proportional to 34,671.78, 47,843.46 and 19,565.28 is: 26,998.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,671.78 : 47,843.46 = 19,565.28 : x
  2. Step 2: Convert to fraction form
    34,671.78/47,843.46 = 19,565.28/x
  3. Step 3: Cross multiply
    34,671.78x = 47,843.46 × 19,565.28
  4. Step 4: Simplify right side
    34,671.78x = 936,070,691.07
  5. Step 5: Solve for x
    x = 936,070,691.07/34,671.78
  6. Step 6: Final answer
    x = 26,998.06

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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.