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Finding the Fourth Proportional to 2,016.86, 2,783.38 and 1,132.82

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Solution

The fourth proportional to 2,016.86, 2,783.38 and 1,132.82 is: 1,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.86 : 2,783.38 = 1,132.82 : x
  2. Step 2: Convert to fraction form
    2,016.86/2,783.38 = 1,132.82/x
  3. Step 3: Cross multiply
    2,016.86x = 2,783.38 × 1,132.82
  4. Step 4: Simplify right side
    2,016.86x = 3,153,068.53
  5. Step 5: Solve for x
    x = 3,153,068.53/2,016.86
  6. Step 6: Final answer
    x = 1,563.36

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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.