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Finding the Fourth Proportional to 5,192.75, 7,789.80 and 1,495.10

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Solution

The fourth proportional to 5,192.75, 7,789.80 and 1,495.10 is: 2,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.75 : 7,789.80 = 1,495.10 : x
  2. Step 2: Convert to fraction form
    5,192.75/7,789.80 = 1,495.10/x
  3. Step 3: Cross multiply
    5,192.75x = 7,789.80 × 1,495.10
  4. Step 4: Simplify right side
    5,192.75x = 11,646,529.98
  5. Step 5: Solve for x
    x = 11,646,529.98/5,192.75
  6. Step 6: Final answer
    x = 2,242.84

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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.