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Finding the Fourth Proportional to 34,351, 47,404.38 and 19,447

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Solution

The fourth proportional to 34,351, 47,404.38 and 19,447 is: 26,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,351 : 47,404.38 = 19,447 : x
  2. Step 2: Convert to fraction form
    34,351/47,404.38 = 19,447/x
  3. Step 3: Cross multiply
    34,351x = 47,404.38 × 19,447
  4. Step 4: Simplify right side
    34,351x = 921,872,977.86
  5. Step 5: Solve for x
    x = 921,872,977.86/34,351
  6. Step 6: Final answer
    x = 26,836.86

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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.