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Finding the Fourth Proportional to 5,133.67, 7,083.78 and 2,895.64

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Solution

The fourth proportional to 5,133.67, 7,083.78 and 2,895.64 is: 3,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.67 : 7,083.78 = 2,895.64 : x
  2. Step 2: Convert to fraction form
    5,133.67/7,083.78 = 2,895.64/x
  3. Step 3: Cross multiply
    5,133.67x = 7,083.78 × 2,895.64
  4. Step 4: Simplify right side
    5,133.67x = 20,512,076.72
  5. Step 5: Solve for x
    x = 20,512,076.72/5,133.67
  6. Step 6: Final answer
    x = 3,995.60

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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.