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Finding the Fourth Proportional to 8,556.47, 12,835.36 and 2,713.13

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Solution

The fourth proportional to 8,556.47, 12,835.36 and 2,713.13 is: 4,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.47 : 12,835.36 = 2,713.13 : x
  2. Step 2: Convert to fraction form
    8,556.47/12,835.36 = 2,713.13/x
  3. Step 3: Cross multiply
    8,556.47x = 12,835.36 × 2,713.13
  4. Step 4: Simplify right side
    8,556.47x = 34,823,987.62
  5. Step 5: Solve for x
    x = 34,823,987.62/8,556.47
  6. Step 6: Final answer
    x = 4,069.90

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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.