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Finding the Fourth Proportional to 13,469.77, 18,597.27 and 8,762.05

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Solution

The fourth proportional to 13,469.77, 18,597.27 and 8,762.05 is: 12,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.77 : 18,597.27 = 8,762.05 : x
  2. Step 2: Convert to fraction form
    13,469.77/18,597.27 = 8,762.05/x
  3. Step 3: Cross multiply
    13,469.77x = 18,597.27 × 8,762.05
  4. Step 4: Simplify right side
    13,469.77x = 162,950,209.60
  5. Step 5: Solve for x
    x = 162,950,209.60/13,469.77
  6. Step 6: Final answer
    x = 12,097.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.