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Finding the Fourth Proportional to 19,482.54, 29,213.78 and 8,943.48

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Solution

The fourth proportional to 19,482.54, 29,213.78 and 8,943.48 is: 13,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.54 : 29,213.78 = 8,943.48 : x
  2. Step 2: Convert to fraction form
    19,482.54/29,213.78 = 8,943.48/x
  3. Step 3: Cross multiply
    19,482.54x = 29,213.78 × 8,943.48
  4. Step 4: Simplify right side
    19,482.54x = 261,272,857.15
  5. Step 5: Solve for x
    x = 261,272,857.15/19,482.54
  6. Step 6: Final answer
    x = 13,410.62

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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.