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Finding the Fourth Proportional to 18,576.79, 27,865.08 and 4,536.89

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Solution

The fourth proportional to 18,576.79, 27,865.08 and 4,536.89 is: 6,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.79 : 27,865.08 = 4,536.89 : x
  2. Step 2: Convert to fraction form
    18,576.79/27,865.08 = 4,536.89/x
  3. Step 3: Cross multiply
    18,576.79x = 27,865.08 × 4,536.89
  4. Step 4: Simplify right side
    18,576.79x = 126,420,802.80
  5. Step 5: Solve for x
    x = 126,420,802.80/18,576.79
  6. Step 6: Final answer
    x = 6,805.31

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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.