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Finding the Fourth Proportional to 35,391.51, 48,839.43 and 20,293.01

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Solution

The fourth proportional to 35,391.51, 48,839.43 and 20,293.01 is: 28,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,391.51 : 48,839.43 = 20,293.01 : x
  2. Step 2: Convert to fraction form
    35,391.51/48,839.43 = 20,293.01/x
  3. Step 3: Cross multiply
    35,391.51x = 48,839.43 × 20,293.01
  4. Step 4: Simplify right side
    35,391.51x = 991,099,056.43
  5. Step 5: Solve for x
    x = 991,099,056.43/35,391.51
  6. Step 6: Final answer
    x = 28,003.86

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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.