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Finding the Fourth Proportional to 19,958.58, 29,935.44 and 6,812.28

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Solution

The fourth proportional to 19,958.58, 29,935.44 and 6,812.28 is: 10,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.58 : 29,935.44 = 6,812.28 : x
  2. Step 2: Convert to fraction form
    19,958.58/29,935.44 = 6,812.28/x
  3. Step 3: Cross multiply
    19,958.58x = 29,935.44 × 6,812.28
  4. Step 4: Simplify right side
    19,958.58x = 203,928,599.20
  5. Step 5: Solve for x
    x = 203,928,599.20/19,958.58
  6. Step 6: Final answer
    x = 10,217.59

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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.