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Finding the Fourth Proportional to 11,861.16, 17,807.94 and 7,632.96

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Solution

The fourth proportional to 11,861.16, 17,807.94 and 7,632.96 is: 11,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.16 : 17,807.94 = 7,632.96 : x
  2. Step 2: Convert to fraction form
    11,861.16/17,807.94 = 7,632.96/x
  3. Step 3: Cross multiply
    11,861.16x = 17,807.94 × 7,632.96
  4. Step 4: Simplify right side
    11,861.16x = 135,927,293.70
  5. Step 5: Solve for x
    x = 135,927,293.70/11,861.16
  6. Step 6: Final answer
    x = 11,459.87

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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.