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Finding the Fourth Proportional to 19,486.95, 29,212.89 and 7,004.04

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Solution

The fourth proportional to 19,486.95, 29,212.89 and 7,004.04 is: 10,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.95 : 29,212.89 = 7,004.04 : x
  2. Step 2: Convert to fraction form
    19,486.95/29,212.89 = 7,004.04/x
  3. Step 3: Cross multiply
    19,486.95x = 29,212.89 × 7,004.04
  4. Step 4: Simplify right side
    19,486.95x = 204,608,250.08
  5. Step 5: Solve for x
    x = 204,608,250.08/19,486.95
  6. Step 6: Final answer
    x = 10,499.76

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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.