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Finding the Fourth Proportional to 9,057.83, 13,571.96 and 8,711.89

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Solution

The fourth proportional to 9,057.83, 13,571.96 and 8,711.89 is: 13,053.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.83 : 13,571.96 = 8,711.89 : x
  2. Step 2: Convert to fraction form
    9,057.83/13,571.96 = 8,711.89/x
  3. Step 3: Cross multiply
    9,057.83x = 13,571.96 × 8,711.89
  4. Step 4: Simplify right side
    9,057.83x = 118,237,345.12
  5. Step 5: Solve for x
    x = 118,237,345.12/9,057.83
  6. Step 6: Final answer
    x = 13,053.61

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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.