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Finding the Fourth Proportional to 69,594.05, 104,397.80 and 19,675.78

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Solution

The fourth proportional to 69,594.05, 104,397.80 and 19,675.78 is: 29,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,594.05 : 104,397.80 = 19,675.78 : x
  2. Step 2: Convert to fraction form
    69,594.05/104,397.80 = 19,675.78/x
  3. Step 3: Cross multiply
    69,594.05x = 104,397.80 × 19,675.78
  4. Step 4: Simplify right side
    69,594.05x = 2,054,107,785.91
  5. Step 5: Solve for x
    x = 2,054,107,785.91/69,594.05
  6. Step 6: Final answer
    x = 29,515.57

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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.