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Finding the Fourth Proportional to 5,910.78, 8,866.98 and 4,680.48

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Solution

The fourth proportional to 5,910.78, 8,866.98 and 4,680.48 is: 7,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.78 : 8,866.98 = 4,680.48 : x
  2. Step 2: Convert to fraction form
    5,910.78/8,866.98 = 4,680.48/x
  3. Step 3: Cross multiply
    5,910.78x = 8,866.98 × 4,680.48
  4. Step 4: Simplify right side
    5,910.78x = 41,501,722.55
  5. Step 5: Solve for x
    x = 41,501,722.55/5,910.78
  6. Step 6: Final answer
    x = 7,021.36

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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.