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Finding the Fourth Proportional to 11,237.63, 16,770.99 and 9,992.12

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Solution

The fourth proportional to 11,237.63, 16,770.99 and 9,992.12 is: 14,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.63 : 16,770.99 = 9,992.12 : x
  2. Step 2: Convert to fraction form
    11,237.63/16,770.99 = 9,992.12/x
  3. Step 3: Cross multiply
    11,237.63x = 16,770.99 × 9,992.12
  4. Step 4: Simplify right side
    11,237.63x = 167,577,660.74
  5. Step 5: Solve for x
    x = 167,577,660.74/11,237.63
  6. Step 6: Final answer
    x = 14,912.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.