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Finding the Fourth Proportional to 6,698.84, 9,989.22 and 6,231.33

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Solution

The fourth proportional to 6,698.84, 9,989.22 and 6,231.33 is: 9,292.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.84 : 9,989.22 = 6,231.33 : x
  2. Step 2: Convert to fraction form
    6,698.84/9,989.22 = 6,231.33/x
  3. Step 3: Cross multiply
    6,698.84x = 9,989.22 × 6,231.33
  4. Step 4: Simplify right side
    6,698.84x = 62,246,149.63
  5. Step 5: Solve for x
    x = 62,246,149.63/6,698.84
  6. Step 6: Final answer
    x = 9,292.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.