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Finding the Fourth Proportional to 11,807.79, 17,706.96 and 5,229.51

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Solution

The fourth proportional to 11,807.79, 17,706.96 and 5,229.51 is: 7,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.79 : 17,706.96 = 5,229.51 : x
  2. Step 2: Convert to fraction form
    11,807.79/17,706.96 = 5,229.51/x
  3. Step 3: Cross multiply
    11,807.79x = 17,706.96 × 5,229.51
  4. Step 4: Simplify right side
    11,807.79x = 92,598,724.39
  5. Step 5: Solve for x
    x = 92,598,724.39/11,807.79
  6. Step 6: Final answer
    x = 7,842.17

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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.