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Finding the Fourth Proportional to 11,861.24, 17,795.02 and 9,876.12

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Solution

The fourth proportional to 11,861.24, 17,795.02 and 9,876.12 is: 14,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.24 : 17,795.02 = 9,876.12 : x
  2. Step 2: Convert to fraction form
    11,861.24/17,795.02 = 9,876.12/x
  3. Step 3: Cross multiply
    11,861.24x = 17,795.02 × 9,876.12
  4. Step 4: Simplify right side
    11,861.24x = 175,745,752.92
  5. Step 5: Solve for x
    x = 175,745,752.92/11,861.24
  6. Step 6: Final answer
    x = 14,816.81

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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.