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Finding the Fourth Proportional to 19,619.01, 29,428.38 and 5,768.01

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Solution

The fourth proportional to 19,619.01, 29,428.38 and 5,768.01 is: 8,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.01 : 29,428.38 = 5,768.01 : x
  2. Step 2: Convert to fraction form
    19,619.01/29,428.38 = 5,768.01/x
  3. Step 3: Cross multiply
    19,619.01x = 29,428.38 × 5,768.01
  4. Step 4: Simplify right side
    19,619.01x = 169,743,190.12
  5. Step 5: Solve for x
    x = 169,743,190.12/19,619.01
  6. Step 6: Final answer
    x = 8,651.98

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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.