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Finding the Fourth Proportional to 2,750.72, 3,795.95 and 1,491.75

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Solution

The fourth proportional to 2,750.72, 3,795.95 and 1,491.75 is: 2,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.72 : 3,795.95 = 1,491.75 : x
  2. Step 2: Convert to fraction form
    2,750.72/3,795.95 = 1,491.75/x
  3. Step 3: Cross multiply
    2,750.72x = 3,795.95 × 1,491.75
  4. Step 4: Simplify right side
    2,750.72x = 5,662,612.14
  5. Step 5: Solve for x
    x = 5,662,612.14/2,750.72
  6. Step 6: Final answer
    x = 2,058.60

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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.