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Finding the Fourth Proportional to 34,603.34, 47,752.62 and 18,687.80

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Solution

The fourth proportional to 34,603.34, 47,752.62 and 18,687.80 is: 25,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,603.34 : 47,752.62 = 18,687.80 : x
  2. Step 2: Convert to fraction form
    34,603.34/47,752.62 = 18,687.80/x
  3. Step 3: Cross multiply
    34,603.34x = 47,752.62 × 18,687.80
  4. Step 4: Simplify right side
    34,603.34x = 892,391,531.42
  5. Step 5: Solve for x
    x = 892,391,531.42/34,603.34
  6. Step 6: Final answer
    x = 25,789.17

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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.