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Finding the Fourth Proportional to 11,800.90, 16,285.92 and 6,765.96

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Solution

The fourth proportional to 11,800.90, 16,285.92 and 6,765.96 is: 9,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.90 : 16,285.92 = 6,765.96 : x
  2. Step 2: Convert to fraction form
    11,800.90/16,285.92 = 6,765.96/x
  3. Step 3: Cross multiply
    11,800.90x = 16,285.92 × 6,765.96
  4. Step 4: Simplify right side
    11,800.90x = 110,189,883.28
  5. Step 5: Solve for x
    x = 110,189,883.28/11,800.90
  6. Step 6: Final answer
    x = 9,337.41

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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.