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Finding the Fourth Proportional to 19,792.66, 29,694.16 and 8,701.54

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Solution

The fourth proportional to 19,792.66, 29,694.16 and 8,701.54 is: 13,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.66 : 29,694.16 = 8,701.54 : x
  2. Step 2: Convert to fraction form
    19,792.66/29,694.16 = 8,701.54/x
  3. Step 3: Cross multiply
    19,792.66x = 29,694.16 × 8,701.54
  4. Step 4: Simplify right side
    19,792.66x = 258,384,921.01
  5. Step 5: Solve for x
    x = 258,384,921.01/19,792.66
  6. Step 6: Final answer
    x = 13,054.58

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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.