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Finding the Fourth Proportional to 56,919, 78,553.80 and 33,044.25

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Solution

The fourth proportional to 56,919, 78,553.80 and 33,044.25 is: 45,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919 : 78,553.80 = 33,044.25 : x
  2. Step 2: Convert to fraction form
    56,919/78,553.80 = 33,044.25/x
  3. Step 3: Cross multiply
    56,919x = 78,553.80 × 33,044.25
  4. Step 4: Simplify right side
    56,919x = 2,595,751,240.43
  5. Step 5: Solve for x
    x = 2,595,751,240.43/56,919
  6. Step 6: Final answer
    x = 45,604.30

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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.