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Finding the Fourth Proportional to 2,766.48, 4,151.34 and 1,672.98

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Solution

The fourth proportional to 2,766.48, 4,151.34 and 1,672.98 is: 2,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.48 : 4,151.34 = 1,672.98 : x
  2. Step 2: Convert to fraction form
    2,766.48/4,151.34 = 1,672.98/x
  3. Step 3: Cross multiply
    2,766.48x = 4,151.34 × 1,672.98
  4. Step 4: Simplify right side
    2,766.48x = 6,945,108.79
  5. Step 5: Solve for x
    x = 6,945,108.79/2,766.48
  6. Step 6: Final answer
    x = 2,510.45

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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.