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Finding the Fourth Proportional to 6,775.76, 9,350.42 and 3,943.02

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Solution

The fourth proportional to 6,775.76, 9,350.42 and 3,943.02 is: 5,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,775.76 : 9,350.42 = 3,943.02 : x
  2. Step 2: Convert to fraction form
    6,775.76/9,350.42 = 3,943.02/x
  3. Step 3: Cross multiply
    6,775.76x = 9,350.42 × 3,943.02
  4. Step 4: Simplify right side
    6,775.76x = 36,868,893.07
  5. Step 5: Solve for x
    x = 36,868,893.07/6,775.76
  6. Step 6: Final answer
    x = 5,441.29

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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.