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Finding the Fourth Proportional to 7,508.87, 10,361.94 and 4,151.46

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Solution

The fourth proportional to 7,508.87, 10,361.94 and 4,151.46 is: 5,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,508.87 : 10,361.94 = 4,151.46 : x
  2. Step 2: Convert to fraction form
    7,508.87/10,361.94 = 4,151.46/x
  3. Step 3: Cross multiply
    7,508.87x = 10,361.94 × 4,151.46
  4. Step 4: Simplify right side
    7,508.87x = 43,017,179.43
  5. Step 5: Solve for x
    x = 43,017,179.43/7,508.87
  6. Step 6: Final answer
    x = 5,728.85

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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.