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Finding the Fourth Proportional to 6,681.77, 9,221.82 and 3,848.59

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Solution

The fourth proportional to 6,681.77, 9,221.82 and 3,848.59 is: 5,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.77 : 9,221.82 = 3,848.59 : x
  2. Step 2: Convert to fraction form
    6,681.77/9,221.82 = 3,848.59/x
  3. Step 3: Cross multiply
    6,681.77x = 9,221.82 × 3,848.59
  4. Step 4: Simplify right side
    6,681.77x = 35,491,001.33
  5. Step 5: Solve for x
    x = 35,491,001.33/6,681.77
  6. Step 6: Final answer
    x = 5,311.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.