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Finding the Fourth Proportional to 35,458.60, 48,933.96 and 20,354.02

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Solution

The fourth proportional to 35,458.60, 48,933.96 and 20,354.02 is: 28,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,458.60 : 48,933.96 = 20,354.02 : x
  2. Step 2: Convert to fraction form
    35,458.60/48,933.96 = 20,354.02/x
  3. Step 3: Cross multiply
    35,458.60x = 48,933.96 × 20,354.02
  4. Step 4: Simplify right side
    35,458.60x = 996,002,800.52
  5. Step 5: Solve for x
    x = 996,002,800.52/35,458.60
  6. Step 6: Final answer
    x = 28,089.17

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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.