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Finding the Fourth Proportional to 34,712.78, 47,903.81 and 18,797.29

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Solution

The fourth proportional to 34,712.78, 47,903.81 and 18,797.29 is: 25,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,712.78 : 47,903.81 = 18,797.29 : x
  2. Step 2: Convert to fraction form
    34,712.78/47,903.81 = 18,797.29/x
  3. Step 3: Cross multiply
    34,712.78x = 47,903.81 × 18,797.29
  4. Step 4: Simplify right side
    34,712.78x = 900,461,594.93
  5. Step 5: Solve for x
    x = 900,461,594.93/34,712.78
  6. Step 6: Final answer
    x = 25,940.35

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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.