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Finding the Fourth Proportional to 20,552.91, 30,822.07 and 7,401.75

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Solution

The fourth proportional to 20,552.91, 30,822.07 and 7,401.75 is: 11,100.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.91 : 30,822.07 = 7,401.75 : x
  2. Step 2: Convert to fraction form
    20,552.91/30,822.07 = 7,401.75/x
  3. Step 3: Cross multiply
    20,552.91x = 30,822.07 × 7,401.75
  4. Step 4: Simplify right side
    20,552.91x = 228,137,256.62
  5. Step 5: Solve for x
    x = 228,137,256.62/20,552.91
  6. Step 6: Final answer
    x = 11,100.00

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1.5x scale

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.