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Finding the Fourth Proportional to 48,499.97, 66,963.11 and 30,357.99

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Solution

The fourth proportional to 48,499.97, 66,963.11 and 30,357.99 is: 41,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,499.97 : 66,963.11 = 30,357.99 : x
  2. Step 2: Convert to fraction form
    48,499.97/66,963.11 = 30,357.99/x
  3. Step 3: Cross multiply
    48,499.97x = 66,963.11 × 30,357.99
  4. Step 4: Simplify right side
    48,499.97x = 2,032,865,271.96
  5. Step 5: Solve for x
    x = 2,032,865,271.96/48,499.97
  6. Step 6: Final answer
    x = 41,914.78

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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.