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Finding the Fourth Proportional to 64,974.30, 97,464.93 and 20,604.54

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Solution

The fourth proportional to 64,974.30, 97,464.93 and 20,604.54 is: 30,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,974.30 : 97,464.93 = 20,604.54 : x
  2. Step 2: Convert to fraction form
    64,974.30/97,464.93 = 20,604.54/x
  3. Step 3: Cross multiply
    64,974.30x = 97,464.93 × 20,604.54
  4. Step 4: Simplify right side
    64,974.30x = 2,008,220,048.78
  5. Step 5: Solve for x
    x = 2,008,220,048.78/64,974.30
  6. Step 6: Final answer
    x = 30,907.91

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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.