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Finding the Fourth Proportional to 7,507.92, 10,361.19 and 4,151.28

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Solution

The fourth proportional to 7,507.92, 10,361.19 and 4,151.28 is: 5,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.92 : 10,361.19 = 4,151.28 : x
  2. Step 2: Convert to fraction form
    7,507.92/10,361.19 = 4,151.28/x
  3. Step 3: Cross multiply
    7,507.92x = 10,361.19 × 4,151.28
  4. Step 4: Simplify right side
    7,507.92x = 43,012,200.82
  5. Step 5: Solve for x
    x = 43,012,200.82/7,507.92
  6. Step 6: Final answer
    x = 5,728.91

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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.