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Finding the Fourth Proportional to 34,703.63, 47,891.25 and 18,788.12

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Solution

The fourth proportional to 34,703.63, 47,891.25 and 18,788.12 is: 25,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,703.63 : 47,891.25 = 18,788.12 : x
  2. Step 2: Convert to fraction form
    34,703.63/47,891.25 = 18,788.12/x
  3. Step 3: Cross multiply
    34,703.63x = 47,891.25 × 18,788.12
  4. Step 4: Simplify right side
    34,703.63x = 899,786,551.95
  5. Step 5: Solve for x
    x = 899,786,551.95/34,703.63
  6. Step 6: Final answer
    x = 25,927.74

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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.