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Finding the Fourth Proportional to 49,992.75, 68,990.84 and 29,851.40

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Solution

The fourth proportional to 49,992.75, 68,990.84 and 29,851.40 is: 41,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,992.75 : 68,990.84 = 29,851.40 : x
  2. Step 2: Convert to fraction form
    49,992.75/68,990.84 = 29,851.40/x
  3. Step 3: Cross multiply
    49,992.75x = 68,990.84 × 29,851.40
  4. Step 4: Simplify right side
    49,992.75x = 2,059,472,666.96
  5. Step 5: Solve for x
    x = 2,059,472,666.96/49,992.75
  6. Step 6: Final answer
    x = 41,195.43

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1.5x scale

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.