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Finding the Fourth Proportional to 35,051.96, 48,369.48 and 20,905.04

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Solution

The fourth proportional to 35,051.96, 48,369.48 and 20,905.04 is: 28,847.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,051.96 : 48,369.48 = 20,905.04 : x
  2. Step 2: Convert to fraction form
    35,051.96/48,369.48 = 20,905.04/x
  3. Step 3: Cross multiply
    35,051.96x = 48,369.48 × 20,905.04
  4. Step 4: Simplify right side
    35,051.96x = 1,011,165,914.18
  5. Step 5: Solve for x
    x = 1,011,165,914.18/35,051.96
  6. Step 6: Final answer
    x = 28,847.63

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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.