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Finding the Fourth Proportional to 5,761.05, 7,954.92 and 3,639.93

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Solution

The fourth proportional to 5,761.05, 7,954.92 and 3,639.93 is: 5,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.05 : 7,954.92 = 3,639.93 : x
  2. Step 2: Convert to fraction form
    5,761.05/7,954.92 = 3,639.93/x
  3. Step 3: Cross multiply
    5,761.05x = 7,954.92 × 3,639.93
  4. Step 4: Simplify right side
    5,761.05x = 28,955,351.96
  5. Step 5: Solve for x
    x = 28,955,351.96/5,761.05
  6. Step 6: Final answer
    x = 5,026.05

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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.