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Finding the Fourth Proportional to 1,486.25, 2,050.62 and 896.37

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Solution

The fourth proportional to 1,486.25, 2,050.62 and 896.37 is: 1,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.25 : 2,050.62 = 896.37 : x
  2. Step 2: Convert to fraction form
    1,486.25/2,050.62 = 896.37/x
  3. Step 3: Cross multiply
    1,486.25x = 2,050.62 × 896.37
  4. Step 4: Simplify right side
    1,486.25x = 1,838,103.20
  5. Step 5: Solve for x
    x = 1,838,103.20/1,486.25
  6. Step 6: Final answer
    x = 1,236.74

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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.