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Finding the Fourth Proportional to 29,994.69, 41,397.29 and 18,516.30

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Solution

The fourth proportional to 29,994.69, 41,397.29 and 18,516.30 is: 25,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,994.69 : 41,397.29 = 18,516.30 : x
  2. Step 2: Convert to fraction form
    29,994.69/41,397.29 = 18,516.30/x
  3. Step 3: Cross multiply
    29,994.69x = 41,397.29 × 18,516.30
  4. Step 4: Simplify right side
    29,994.69x = 766,524,640.83
  5. Step 5: Solve for x
    x = 766,524,640.83/29,994.69
  6. Step 6: Final answer
    x = 25,555.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.