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Finding the Fourth Proportional to 43,898.73, 65,859.48 and 12,308.88

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Solution

The fourth proportional to 43,898.73, 65,859.48 and 12,308.88 is: 18,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,898.73 : 65,859.48 = 12,308.88 : x
  2. Step 2: Convert to fraction form
    43,898.73/65,859.48 = 12,308.88/x
  3. Step 3: Cross multiply
    43,898.73x = 65,859.48 × 12,308.88
  4. Step 4: Simplify right side
    43,898.73x = 810,656,312.70
  5. Step 5: Solve for x
    x = 810,656,312.70/43,898.73
  6. Step 6: Final answer
    x = 18,466.51

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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.