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Finding the Fourth Proportional to 7,361.55, 10,158.93 and 4,174.90

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Solution

The fourth proportional to 7,361.55, 10,158.93 and 4,174.90 is: 5,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.55 : 10,158.93 = 4,174.90 : x
  2. Step 2: Convert to fraction form
    7,361.55/10,158.93 = 4,174.90/x
  3. Step 3: Cross multiply
    7,361.55x = 10,158.93 × 4,174.90
  4. Step 4: Simplify right side
    7,361.55x = 42,412,491.46
  5. Step 5: Solve for x
    x = 42,412,491.46/7,361.55
  6. Step 6: Final answer
    x = 5,761.35

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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.