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Finding the Fourth Proportional to 69,918.79, 96,489.42 and 38,087.62

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Solution

The fourth proportional to 69,918.79, 96,489.42 and 38,087.62 is: 52,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,918.79 : 96,489.42 = 38,087.62 : x
  2. Step 2: Convert to fraction form
    69,918.79/96,489.42 = 38,087.62/x
  3. Step 3: Cross multiply
    69,918.79x = 96,489.42 × 38,087.62
  4. Step 4: Simplify right side
    69,918.79x = 3,675,052,362.98
  5. Step 5: Solve for x
    x = 3,675,052,362.98/69,918.79
  6. Step 6: Final answer
    x = 52,561.73

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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.