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Finding the Fourth Proportional to 1,850.92, 2,551.80 and 1,260.48

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Solution

The fourth proportional to 1,850.92, 2,551.80 and 1,260.48 is: 1,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.92 : 2,551.80 = 1,260.48 : x
  2. Step 2: Convert to fraction form
    1,850.92/2,551.80 = 1,260.48/x
  3. Step 3: Cross multiply
    1,850.92x = 2,551.80 × 1,260.48
  4. Step 4: Simplify right side
    1,850.92x = 3,216,492.86
  5. Step 5: Solve for x
    x = 3,216,492.86/1,850.92
  6. Step 6: Final answer
    x = 1,737.78

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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.