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Finding the Fourth Proportional to 35,373.92, 48,817.04 and 20,268

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Solution

The fourth proportional to 35,373.92, 48,817.04 and 20,268 is: 27,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,373.92 : 48,817.04 = 20,268 : x
  2. Step 2: Convert to fraction form
    35,373.92/48,817.04 = 20,268/x
  3. Step 3: Cross multiply
    35,373.92x = 48,817.04 × 20,268
  4. Step 4: Simplify right side
    35,373.92x = 989,423,766.72
  5. Step 5: Solve for x
    x = 989,423,766.72/35,373.92
  6. Step 6: Final answer
    x = 27,970.43

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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.