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Finding the Fourth Proportional to 15,859.69, 23,800.31 and 8,469.45

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Solution

The fourth proportional to 15,859.69, 23,800.31 and 8,469.45 is: 12,709.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,859.69 : 23,800.31 = 8,469.45 : x
  2. Step 2: Convert to fraction form
    15,859.69/23,800.31 = 8,469.45/x
  3. Step 3: Cross multiply
    15,859.69x = 23,800.31 × 8,469.45
  4. Step 4: Simplify right side
    15,859.69x = 201,575,535.53
  5. Step 5: Solve for x
    x = 201,575,535.53/15,859.69
  6. Step 6: Final answer
    x = 12,709.93

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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.