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Finding the Fourth Proportional to 49,793.18, 68,693 and 29,638.76

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Solution

The fourth proportional to 49,793.18, 68,693 and 29,638.76 is: 40,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,793.18 : 68,693 = 29,638.76 : x
  2. Step 2: Convert to fraction form
    49,793.18/68,693 = 29,638.76/x
  3. Step 3: Cross multiply
    49,793.18x = 68,693 × 29,638.76
  4. Step 4: Simplify right side
    49,793.18x = 2,035,975,340.68
  5. Step 5: Solve for x
    x = 2,035,975,340.68/49,793.18
  6. Step 6: Final answer
    x = 40,888.64

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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.