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Finding the Fourth Proportional to 8,556.72, 12,835.10 and 2,316.77

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Solution

The fourth proportional to 8,556.72, 12,835.10 and 2,316.77 is: 3,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.72 : 12,835.10 = 2,316.77 : x
  2. Step 2: Convert to fraction form
    8,556.72/12,835.10 = 2,316.77/x
  3. Step 3: Cross multiply
    8,556.72x = 12,835.10 × 2,316.77
  4. Step 4: Simplify right side
    8,556.72x = 29,735,910.45
  5. Step 5: Solve for x
    x = 29,735,910.45/8,556.72
  6. Step 6: Final answer
    x = 3,475.15

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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.