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Finding the Fourth Proportional to 61,614.54, 85,028.00 and 33,320.21

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Solution

The fourth proportional to 61,614.54, 85,028.00 and 33,320.21 is: 45,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,614.54 : 85,028.00 = 33,320.21 : x
  2. Step 2: Convert to fraction form
    61,614.54/85,028.00 = 33,320.21/x
  3. Step 3: Cross multiply
    61,614.54x = 85,028.00 × 33,320.21
  4. Step 4: Simplify right side
    61,614.54x = 2,833,150,224.14
  5. Step 5: Solve for x
    x = 2,833,150,224.14/61,614.54
  6. Step 6: Final answer
    x = 45,981.84

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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.