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Finding the Fourth Proportional to 35,468.60, 48,948.75 and 20,361.29

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Solution

The fourth proportional to 35,468.60, 48,948.75 and 20,361.29 is: 28,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,468.60 : 48,948.75 = 20,361.29 : x
  2. Step 2: Convert to fraction form
    35,468.60/48,948.75 = 20,361.29/x
  3. Step 3: Cross multiply
    35,468.60x = 48,948.75 × 20,361.29
  4. Step 4: Simplify right side
    35,468.60x = 996,659,449.14
  5. Step 5: Solve for x
    x = 996,659,449.14/35,468.60
  6. Step 6: Final answer
    x = 28,099.77

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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.