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Finding the Fourth Proportional to 19,937.88, 29,896.65 and 6,606.07

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Solution

The fourth proportional to 19,937.88, 29,896.65 and 6,606.07 is: 9,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.88 : 29,896.65 = 6,606.07 : x
  2. Step 2: Convert to fraction form
    19,937.88/29,896.65 = 6,606.07/x
  3. Step 3: Cross multiply
    19,937.88x = 29,896.65 × 6,606.07
  4. Step 4: Simplify right side
    19,937.88x = 197,499,287.92
  5. Step 5: Solve for x
    x = 197,499,287.92/19,937.88
  6. Step 6: Final answer
    x = 9,905.73

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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.