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Finding the Fourth Proportional to 8,889.63, 13,318.65 and 4,204.59

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Solution

The fourth proportional to 8,889.63, 13,318.65 and 4,204.59 is: 6,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.63 : 13,318.65 = 4,204.59 : x
  2. Step 2: Convert to fraction form
    8,889.63/13,318.65 = 4,204.59/x
  3. Step 3: Cross multiply
    8,889.63x = 13,318.65 × 4,204.59
  4. Step 4: Simplify right side
    8,889.63x = 55,999,462.60
  5. Step 5: Solve for x
    x = 55,999,462.60/8,889.63
  6. Step 6: Final answer
    x = 6,299.41

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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.