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Finding the Fourth Proportional to 69,693.40, 104,544.07 and 19,769.59

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Solution

The fourth proportional to 69,693.40, 104,544.07 and 19,769.59 is: 29,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,693.40 : 104,544.07 = 19,769.59 : x
  2. Step 2: Convert to fraction form
    69,693.40/104,544.07 = 19,769.59/x
  3. Step 3: Cross multiply
    69,693.40x = 104,544.07 × 19,769.59
  4. Step 4: Simplify right side
    69,693.40x = 2,066,793,090.05
  5. Step 5: Solve for x
    x = 2,066,793,090.05/69,693.40
  6. Step 6: Final answer
    x = 29,655.51

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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.