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Finding the Fourth Proportional to 6,701.68, 10,050.90 and 2,809

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Solution

The fourth proportional to 6,701.68, 10,050.90 and 2,809 is: 4,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,701.68 : 10,050.90 = 2,809 : x
  2. Step 2: Convert to fraction form
    6,701.68/10,050.90 = 2,809/x
  3. Step 3: Cross multiply
    6,701.68x = 10,050.90 × 2,809
  4. Step 4: Simplify right side
    6,701.68x = 28,232,978.10
  5. Step 5: Solve for x
    x = 28,232,978.10/6,701.68
  6. Step 6: Final answer
    x = 4,212.82

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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.