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Finding the Fourth Proportional to 39,894.62, 59,835.44 and 18,834.62

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Solution

The fourth proportional to 39,894.62, 59,835.44 and 18,834.62 is: 28,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.62 : 59,835.44 = 18,834.62 : x
  2. Step 2: Convert to fraction form
    39,894.62/59,835.44 = 18,834.62/x
  3. Step 3: Cross multiply
    39,894.62x = 59,835.44 × 18,834.62
  4. Step 4: Simplify right side
    39,894.62x = 1,126,977,381.58
  5. Step 5: Solve for x
    x = 1,126,977,381.58/39,894.62
  6. Step 6: Final answer
    x = 28,248.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.