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Finding the Fourth Proportional to 5,361.28, 7,398.48 and 3,003.40

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Solution

The fourth proportional to 5,361.28, 7,398.48 and 3,003.40 is: 4,144.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.28 : 7,398.48 = 3,003.40 : x
  2. Step 2: Convert to fraction form
    5,361.28/7,398.48 = 3,003.40/x
  3. Step 3: Cross multiply
    5,361.28x = 7,398.48 × 3,003.40
  4. Step 4: Simplify right side
    5,361.28x = 22,220,594.83
  5. Step 5: Solve for x
    x = 22,220,594.83/5,361.28
  6. Step 6: Final answer
    x = 4,144.64

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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.