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Finding the Fourth Proportional to 6,616.54, 9,908.40 and 5,525.74

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Solution

The fourth proportional to 6,616.54, 9,908.40 and 5,525.74 is: 8,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.54 : 9,908.40 = 5,525.74 : x
  2. Step 2: Convert to fraction form
    6,616.54/9,908.40 = 5,525.74/x
  3. Step 3: Cross multiply
    6,616.54x = 9,908.40 × 5,525.74
  4. Step 4: Simplify right side
    6,616.54x = 54,751,242.22
  5. Step 5: Solve for x
    x = 54,751,242.22/6,616.54
  6. Step 6: Final answer
    x = 8,274.91

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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.