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Finding the Fourth Proportional to 48,490.84, 66,839.34 and 36,206.38

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Solution

The fourth proportional to 48,490.84, 66,839.34 and 36,206.38 is: 49,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,490.84 : 66,839.34 = 36,206.38 : x
  2. Step 2: Convert to fraction form
    48,490.84/66,839.34 = 36,206.38/x
  3. Step 3: Cross multiply
    48,490.84x = 66,839.34 × 36,206.38
  4. Step 4: Simplify right side
    48,490.84x = 2,420,010,542.99
  5. Step 5: Solve for x
    x = 2,420,010,542.99/48,490.84
  6. Step 6: Final answer
    x = 49,906.55

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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.