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Finding the Fourth Proportional to 69,028.80, 103,527.69 and 26,894.43

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Solution

The fourth proportional to 69,028.80, 103,527.69 and 26,894.43 is: 40,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,028.80 : 103,527.69 = 26,894.43 : x
  2. Step 2: Convert to fraction form
    69,028.80/103,527.69 = 26,894.43/x
  3. Step 3: Cross multiply
    69,028.80x = 103,527.69 × 26,894.43
  4. Step 4: Simplify right side
    69,028.80x = 2,784,318,211.77
  5. Step 5: Solve for x
    x = 2,784,318,211.77/69,028.80
  6. Step 6: Final answer
    x = 40,335.60

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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.