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Finding the Fourth Proportional to 7,671.50, 11,500.38 and 2,740.43

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Solution

The fourth proportional to 7,671.50, 11,500.38 and 2,740.43 is: 4,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.50 : 11,500.38 = 2,740.43 : x
  2. Step 2: Convert to fraction form
    7,671.50/11,500.38 = 2,740.43/x
  3. Step 3: Cross multiply
    7,671.50x = 11,500.38 × 2,740.43
  4. Step 4: Simplify right side
    7,671.50x = 31,515,986.36
  5. Step 5: Solve for x
    x = 31,515,986.36/7,671.50
  6. Step 6: Final answer
    x = 4,108.19

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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.