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Finding the Fourth Proportional to 27,375.51, 41,069.45 and 8,656.68

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Solution

The fourth proportional to 27,375.51, 41,069.45 and 8,656.68 is: 12,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,375.51 : 41,069.45 = 8,656.68 : x
  2. Step 2: Convert to fraction form
    27,375.51/41,069.45 = 8,656.68/x
  3. Step 3: Cross multiply
    27,375.51x = 41,069.45 × 8,656.68
  4. Step 4: Simplify right side
    27,375.51x = 355,525,086.43
  5. Step 5: Solve for x
    x = 355,525,086.43/27,375.51
  6. Step 6: Final answer
    x = 12,986.98

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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.