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Finding the Fourth Proportional to 4,866.96, 7,300.80 and 2,092.80

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Solution

The fourth proportional to 4,866.96, 7,300.80 and 2,092.80 is: 3,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.96 : 7,300.80 = 2,092.80 : x
  2. Step 2: Convert to fraction form
    4,866.96/7,300.80 = 2,092.80/x
  3. Step 3: Cross multiply
    4,866.96x = 7,300.80 × 2,092.80
  4. Step 4: Simplify right side
    4,866.96x = 15,279,114.24
  5. Step 5: Solve for x
    x = 15,279,114.24/4,866.96
  6. Step 6: Final answer
    x = 3,139.35

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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.