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Finding the Fourth Proportional to 19,602.67, 29,408.95 and 8,506.66

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Solution

The fourth proportional to 19,602.67, 29,408.95 and 8,506.66 is: 12,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.67 : 29,408.95 = 8,506.66 : x
  2. Step 2: Convert to fraction form
    19,602.67/29,408.95 = 8,506.66/x
  3. Step 3: Cross multiply
    19,602.67x = 29,408.95 × 8,506.66
  4. Step 4: Simplify right side
    19,602.67x = 250,171,791.56
  5. Step 5: Solve for x
    x = 250,171,791.56/19,602.67
  6. Step 6: Final answer
    x = 12,762.13

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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.