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Finding the Fourth Proportional to 6,620.06, 9,930.13 and 2,003.06

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Solution

The fourth proportional to 6,620.06, 9,930.13 and 2,003.06 is: 3,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.06 : 9,930.13 = 2,003.06 : x
  2. Step 2: Convert to fraction form
    6,620.06/9,930.13 = 2,003.06/x
  3. Step 3: Cross multiply
    6,620.06x = 9,930.13 × 2,003.06
  4. Step 4: Simplify right side
    6,620.06x = 19,890,666.02
  5. Step 5: Solve for x
    x = 19,890,666.02/6,620.06
  6. Step 6: Final answer
    x = 3,004.60

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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.