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Finding the Fourth Proportional to 6,616.08, 9,921.62 and 2,666.00

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Solution

The fourth proportional to 6,616.08, 9,921.62 and 2,666.00 is: 3,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.08 : 9,921.62 = 2,666.00 : x
  2. Step 2: Convert to fraction form
    6,616.08/9,921.62 = 2,666.00/x
  3. Step 3: Cross multiply
    6,616.08x = 9,921.62 × 2,666.00
  4. Step 4: Simplify right side
    6,616.08x = 26,450,975.98
  5. Step 5: Solve for x
    x = 26,450,975.98/6,616.08
  6. Step 6: Final answer
    x = 3,997.98

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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.