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Finding the Fourth Proportional to 8,906.50, 13,359.93 and 2,750.50

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Solution

The fourth proportional to 8,906.50, 13,359.93 and 2,750.50 is: 4,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.50 : 13,359.93 = 2,750.50 : x
  2. Step 2: Convert to fraction form
    8,906.50/13,359.93 = 2,750.50/x
  3. Step 3: Cross multiply
    8,906.50x = 13,359.93 × 2,750.50
  4. Step 4: Simplify right side
    8,906.50x = 36,746,487.47
  5. Step 5: Solve for x
    x = 36,746,487.47/8,906.50
  6. Step 6: Final answer
    x = 4,125.81

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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.