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Finding the Fourth Proportional to 69,302.88, 103,953.40 and 16,711.94

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Solution

The fourth proportional to 69,302.88, 103,953.40 and 16,711.94 is: 25,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,302.88 : 103,953.40 = 16,711.94 : x
  2. Step 2: Convert to fraction form
    69,302.88/103,953.40 = 16,711.94/x
  3. Step 3: Cross multiply
    69,302.88x = 103,953.40 × 16,711.94
  4. Step 4: Simplify right side
    69,302.88x = 1,737,262,983.60
  5. Step 5: Solve for x
    x = 1,737,262,983.60/69,302.88
  6. Step 6: Final answer
    x = 25,067.69

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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.