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Finding the Fourth Proportional to 19,812.99, 29,723.38 and 7,333.12

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Solution

The fourth proportional to 19,812.99, 29,723.38 and 7,333.12 is: 11,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.99 : 29,723.38 = 7,333.12 : x
  2. Step 2: Convert to fraction form
    19,812.99/29,723.38 = 7,333.12/x
  3. Step 3: Cross multiply
    19,812.99x = 29,723.38 × 7,333.12
  4. Step 4: Simplify right side
    19,812.99x = 217,965,112.83
  5. Step 5: Solve for x
    x = 217,965,112.83/19,812.99
  6. Step 6: Final answer
    x = 11,001.12

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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.