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Finding the Fourth Proportional to 35,443.66, 48,890.61 and 21,093.85

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Solution

The fourth proportional to 35,443.66, 48,890.61 and 21,093.85 is: 29,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,443.66 : 48,890.61 = 21,093.85 : x
  2. Step 2: Convert to fraction form
    35,443.66/48,890.61 = 21,093.85/x
  3. Step 3: Cross multiply
    35,443.66x = 48,890.61 × 21,093.85
  4. Step 4: Simplify right side
    35,443.66x = 1,031,291,193.75
  5. Step 5: Solve for x
    x = 1,031,291,193.75/35,443.66
  6. Step 6: Final answer
    x = 29,096.63

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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.