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Finding the Fourth Proportional to 4,523.94, 6,781.86 and 2,875.86

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Solution

The fourth proportional to 4,523.94, 6,781.86 and 2,875.86 is: 4,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,523.94 : 6,781.86 = 2,875.86 : x
  2. Step 2: Convert to fraction form
    4,523.94/6,781.86 = 2,875.86/x
  3. Step 3: Cross multiply
    4,523.94x = 6,781.86 × 2,875.86
  4. Step 4: Simplify right side
    4,523.94x = 19,503,679.90
  5. Step 5: Solve for x
    x = 19,503,679.90/4,523.94
  6. Step 6: Final answer
    x = 4,311.22

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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.