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Finding the Fourth Proportional to 35,317.62, 48,724.50 and 20,202.21

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Solution

The fourth proportional to 35,317.62, 48,724.50 and 20,202.21 is: 27,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,317.62 : 48,724.50 = 20,202.21 : x
  2. Step 2: Convert to fraction form
    35,317.62/48,724.50 = 20,202.21/x
  3. Step 3: Cross multiply
    35,317.62x = 48,724.50 × 20,202.21
  4. Step 4: Simplify right side
    35,317.62x = 984,342,581.15
  5. Step 5: Solve for x
    x = 984,342,581.15/35,317.62
  6. Step 6: Final answer
    x = 27,871.15

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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.