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Finding the Fourth Proportional to 7,361.47, 10,158.73 and 4,004.21

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Solution

The fourth proportional to 7,361.47, 10,158.73 and 4,004.21 is: 5,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.47 : 10,158.73 = 4,004.21 : x
  2. Step 2: Convert to fraction form
    7,361.47/10,158.73 = 4,004.21/x
  3. Step 3: Cross multiply
    7,361.47x = 10,158.73 × 4,004.21
  4. Step 4: Simplify right side
    7,361.47x = 40,677,617.44
  5. Step 5: Solve for x
    x = 40,677,617.44/7,361.47
  6. Step 6: Final answer
    x = 5,525.75

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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.