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Finding the Fourth Proportional to 6,657.55, 9,187.93 and 3,673.64

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Solution

The fourth proportional to 6,657.55, 9,187.93 and 3,673.64 is: 5,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.55 : 9,187.93 = 3,673.64 : x
  2. Step 2: Convert to fraction form
    6,657.55/9,187.93 = 3,673.64/x
  3. Step 3: Cross multiply
    6,657.55x = 9,187.93 × 3,673.64
  4. Step 4: Simplify right side
    6,657.55x = 33,753,174.73
  5. Step 5: Solve for x
    x = 33,753,174.73/6,657.55
  6. Step 6: Final answer
    x = 5,069.91

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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.