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Finding the Fourth Proportional to 10,736.20, 16,111.86 and 9,818.20

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Solution

The fourth proportional to 10,736.20, 16,111.86 and 9,818.20 is: 14,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,736.20 : 16,111.86 = 9,818.20 : x
  2. Step 2: Convert to fraction form
    10,736.20/16,111.86 = 9,818.20/x
  3. Step 3: Cross multiply
    10,736.20x = 16,111.86 × 9,818.20
  4. Step 4: Simplify right side
    10,736.20x = 158,189,463.85
  5. Step 5: Solve for x
    x = 158,189,463.85/10,736.20
  6. Step 6: Final answer
    x = 14,734.21

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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.