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Finding the Fourth Proportional to 33,797,652.80, 50,690,258.40 and 20,995,246.40

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Solution

The fourth proportional to 33,797,652.80, 50,690,258.40 and 20,995,246.40 is: 31,489,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,797,652.80 : 50,690,258.40 = 20,995,246.40 : x
  2. Step 2: Convert to fraction form
    33,797,652.80/50,690,258.40 = 20,995,246.40/x
  3. Step 3: Cross multiply
    33,797,652.80x = 50,690,258.40 × 20,995,246.40
  4. Step 4: Simplify right side
    33,797,652.80x = 1,064,254,465,187,669.62
  5. Step 5: Solve for x
    x = 1,064,254,465,187,669.62/33,797,652.80
  6. Step 6: Final answer
    x = 31,489,005.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.