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Finding the Fourth Proportional to 50,491.62, 69,652.81 and 38,534.20

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Solution

The fourth proportional to 50,491.62, 69,652.81 and 38,534.20 is: 53,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,491.62 : 69,652.81 = 38,534.20 : x
  2. Step 2: Convert to fraction form
    50,491.62/69,652.81 = 38,534.20/x
  3. Step 3: Cross multiply
    50,491.62x = 69,652.81 × 38,534.20
  4. Step 4: Simplify right side
    50,491.62x = 2,684,015,185.14
  5. Step 5: Solve for x
    x = 2,684,015,185.14/50,491.62
  6. Step 6: Final answer
    x = 53,157.64

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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.