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Finding the Fourth Proportional to 31,052.79, 46,579.59 and 8,866.15

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Solution

The fourth proportional to 31,052.79, 46,579.59 and 8,866.15 is: 13,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.79 : 46,579.59 = 8,866.15 : x
  2. Step 2: Convert to fraction form
    31,052.79/46,579.59 = 8,866.15/x
  3. Step 3: Cross multiply
    31,052.79x = 46,579.59 × 8,866.15
  4. Step 4: Simplify right side
    31,052.79x = 412,981,515.43
  5. Step 5: Solve for x
    x = 412,981,515.43/31,052.79
  6. Step 6: Final answer
    x = 13,299.34

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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.