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Finding the Fourth Proportional to 16,692.81, 25,047.84 and 7,339.38

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Solution

The fourth proportional to 16,692.81, 25,047.84 and 7,339.38 is: 11,012.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.81 : 25,047.84 = 7,339.38 : x
  2. Step 2: Convert to fraction form
    16,692.81/25,047.84 = 7,339.38/x
  3. Step 3: Cross multiply
    16,692.81x = 25,047.84 × 7,339.38
  4. Step 4: Simplify right side
    16,692.81x = 183,835,615.94
  5. Step 5: Solve for x
    x = 183,835,615.94/16,692.81
  6. Step 6: Final answer
    x = 11,012.86

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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.