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Finding the Fourth Proportional to 1,656.54, 2,481.62 and 833.84

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Solution

The fourth proportional to 1,656.54, 2,481.62 and 833.84 is: 1,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.54 : 2,481.62 = 833.84 : x
  2. Step 2: Convert to fraction form
    1,656.54/2,481.62 = 833.84/x
  3. Step 3: Cross multiply
    1,656.54x = 2,481.62 × 833.84
  4. Step 4: Simplify right side
    1,656.54x = 2,069,274.02
  5. Step 5: Solve for x
    x = 2,069,274.02/1,656.54
  6. Step 6: Final answer
    x = 1,249.15

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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.