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Finding the Fourth Proportional to 69,299.63, 103,948.53 and 16,708.69

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Solution

The fourth proportional to 69,299.63, 103,948.53 and 16,708.69 is: 25,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,299.63 : 103,948.53 = 16,708.69 : x
  2. Step 2: Convert to fraction form
    69,299.63/103,948.53 = 16,708.69/x
  3. Step 3: Cross multiply
    69,299.63x = 103,948.53 × 16,708.69
  4. Step 4: Simplify right side
    69,299.63x = 1,736,843,763.73
  5. Step 5: Solve for x
    x = 1,736,843,763.73/69,299.63
  6. Step 6: Final answer
    x = 25,062.81

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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.