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Finding the Fourth Proportional to 6,638.73, 9,964.24 and 3,354.13

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Solution

The fourth proportional to 6,638.73, 9,964.24 and 3,354.13 is: 5,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.73 : 9,964.24 = 3,354.13 : x
  2. Step 2: Convert to fraction form
    6,638.73/9,964.24 = 3,354.13/x
  3. Step 3: Cross multiply
    6,638.73x = 9,964.24 × 3,354.13
  4. Step 4: Simplify right side
    6,638.73x = 33,421,313.77
  5. Step 5: Solve for x
    x = 33,421,313.77/6,638.73
  6. Step 6: Final answer
    x = 5,034.30

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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.