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Finding the Fourth Proportional to 57,249, 79,003.62 and 34,905.96

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Solution

The fourth proportional to 57,249, 79,003.62 and 34,905.96 is: 48,170.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,249 : 79,003.62 = 34,905.96 : x
  2. Step 2: Convert to fraction form
    57,249/79,003.62 = 34,905.96/x
  3. Step 3: Cross multiply
    57,249x = 79,003.62 × 34,905.96
  4. Step 4: Simplify right side
    57,249x = 2,757,697,199.58
  5. Step 5: Solve for x
    x = 2,757,697,199.58/57,249
  6. Step 6: Final answer
    x = 48,170.22

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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.