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Finding the Fourth Proportional to 4,512.51, 6,764.11 and 1,881.43

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Solution

The fourth proportional to 4,512.51, 6,764.11 and 1,881.43 is: 2,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,512.51 : 6,764.11 = 1,881.43 : x
  2. Step 2: Convert to fraction form
    4,512.51/6,764.11 = 1,881.43/x
  3. Step 3: Cross multiply
    4,512.51x = 6,764.11 × 1,881.43
  4. Step 4: Simplify right side
    4,512.51x = 12,726,177.86
  5. Step 5: Solve for x
    x = 12,726,177.86/4,512.51
  6. Step 6: Final answer
    x = 2,820.20

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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.