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Finding the Fourth Proportional to 11,486.44, 15,850.06 and 6,451.21

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Solution

The fourth proportional to 11,486.44, 15,850.06 and 6,451.21 is: 8,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.44 : 15,850.06 = 6,451.21 : x
  2. Step 2: Convert to fraction form
    11,486.44/15,850.06 = 6,451.21/x
  3. Step 3: Cross multiply
    11,486.44x = 15,850.06 × 6,451.21
  4. Step 4: Simplify right side
    11,486.44x = 102,252,065.57
  5. Step 5: Solve for x
    x = 102,252,065.57/11,486.44
  6. Step 6: Final answer
    x = 8,901.98

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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.