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Finding the Fourth Proportional to 6,657.21, 9,984.80 and 4,184.48

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Solution

The fourth proportional to 6,657.21, 9,984.80 and 4,184.48 is: 6,276.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.21 : 9,984.80 = 4,184.48 : x
  2. Step 2: Convert to fraction form
    6,657.21/9,984.80 = 4,184.48/x
  3. Step 3: Cross multiply
    6,657.21x = 9,984.80 × 4,184.48
  4. Step 4: Simplify right side
    6,657.21x = 41,781,231.33
  5. Step 5: Solve for x
    x = 41,781,231.33/6,657.21
  6. Step 6: Final answer
    x = 6,276.09

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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.