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Finding the Fourth Proportional to 6,893.86, 9,513.78 and 3,750.28

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Solution

The fourth proportional to 6,893.86, 9,513.78 and 3,750.28 is: 5,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.86 : 9,513.78 = 3,750.28 : x
  2. Step 2: Convert to fraction form
    6,893.86/9,513.78 = 3,750.28/x
  3. Step 3: Cross multiply
    6,893.86x = 9,513.78 × 3,750.28
  4. Step 4: Simplify right side
    6,893.86x = 35,679,338.86
  5. Step 5: Solve for x
    x = 35,679,338.86/6,893.86
  6. Step 6: Final answer
    x = 5,175.52

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1.5x scale

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.