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Finding the Fourth Proportional to 20,395.66, 30,593.13 and 5,604.52

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Solution

The fourth proportional to 20,395.66, 30,593.13 and 5,604.52 is: 8,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.66 : 30,593.13 = 5,604.52 : x
  2. Step 2: Convert to fraction form
    20,395.66/30,593.13 = 5,604.52/x
  3. Step 3: Cross multiply
    20,395.66x = 30,593.13 × 5,604.52
  4. Step 4: Simplify right side
    20,395.66x = 171,459,808.95
  5. Step 5: Solve for x
    x = 171,459,808.95/20,395.66
  6. Step 6: Final answer
    x = 8,406.68

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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.