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Finding the Fourth Proportional to 10,556.00, 15,834.03 and 8,572.24

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Solution

The fourth proportional to 10,556.00, 15,834.03 and 8,572.24 is: 12,858.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.00 : 15,834.03 = 8,572.24 : x
  2. Step 2: Convert to fraction form
    10,556.00/15,834.03 = 8,572.24/x
  3. Step 3: Cross multiply
    10,556.00x = 15,834.03 × 8,572.24
  4. Step 4: Simplify right side
    10,556.00x = 135,733,163.46
  5. Step 5: Solve for x
    x = 135,733,163.46/10,556.00
  6. Step 6: Final answer
    x = 12,858.39

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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.