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Finding the Fourth Proportional to 9,906.16, 14,835.80 and 8,600.54

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Solution

The fourth proportional to 9,906.16, 14,835.80 and 8,600.54 is: 12,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.16 : 14,835.80 = 8,600.54 : x
  2. Step 2: Convert to fraction form
    9,906.16/14,835.80 = 8,600.54/x
  3. Step 3: Cross multiply
    9,906.16x = 14,835.80 × 8,600.54
  4. Step 4: Simplify right side
    9,906.16x = 127,595,891.33
  5. Step 5: Solve for x
    x = 127,595,891.33/9,906.16
  6. Step 6: Final answer
    x = 12,880.46

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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.