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Finding the Fourth Proportional to 6,893.96, 10,342.54 and 1,963.64

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Solution

The fourth proportional to 6,893.96, 10,342.54 and 1,963.64 is: 2,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.96 : 10,342.54 = 1,963.64 : x
  2. Step 2: Convert to fraction form
    6,893.96/10,342.54 = 1,963.64/x
  3. Step 3: Cross multiply
    6,893.96x = 10,342.54 × 1,963.64
  4. Step 4: Simplify right side
    6,893.96x = 20,309,042.51
  5. Step 5: Solve for x
    x = 20,309,042.51/6,893.96
  6. Step 6: Final answer
    x = 2,945.92

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1.5x scale

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.