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Finding the Fourth Proportional to 19,888.74, 29,797.99 and 10,508.04

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Solution

The fourth proportional to 19,888.74, 29,797.99 and 10,508.04 is: 15,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.74 : 29,797.99 = 10,508.04 : x
  2. Step 2: Convert to fraction form
    19,888.74/29,797.99 = 10,508.04/x
  3. Step 3: Cross multiply
    19,888.74x = 29,797.99 × 10,508.04
  4. Step 4: Simplify right side
    19,888.74x = 313,118,470.84
  5. Step 5: Solve for x
    x = 313,118,470.84/19,888.74
  6. Step 6: Final answer
    x = 15,743.50

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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.