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Finding the Fourth Proportional to 8,883.68, 12,261.98 and 6,231.74

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Solution

The fourth proportional to 8,883.68, 12,261.98 and 6,231.74 is: 8,601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.68 : 12,261.98 = 6,231.74 : x
  2. Step 2: Convert to fraction form
    8,883.68/12,261.98 = 6,231.74/x
  3. Step 3: Cross multiply
    8,883.68x = 12,261.98 × 6,231.74
  4. Step 4: Simplify right side
    8,883.68x = 76,413,425.51
  5. Step 5: Solve for x
    x = 76,413,425.51/8,883.68
  6. Step 6: Final answer
    x = 8,601.56

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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.