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Finding the Fourth Proportional to 5,092.76, 7,028.50 and 2,855.01

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Solution

The fourth proportional to 5,092.76, 7,028.50 and 2,855.01 is: 3,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,092.76 : 7,028.50 = 2,855.01 : x
  2. Step 2: Convert to fraction form
    5,092.76/7,028.50 = 2,855.01/x
  3. Step 3: Cross multiply
    5,092.76x = 7,028.50 × 2,855.01
  4. Step 4: Simplify right side
    5,092.76x = 20,066,437.79
  5. Step 5: Solve for x
    x = 20,066,437.79/5,092.76
  6. Step 6: Final answer
    x = 3,940.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.