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Finding the Fourth Proportional to 14,732, 20,330.20 and 8,108

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Solution

The fourth proportional to 14,732, 20,330.20 and 8,108 is: 11,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,732 : 20,330.20 = 8,108 : x
  2. Step 2: Convert to fraction form
    14,732/20,330.20 = 8,108/x
  3. Step 3: Cross multiply
    14,732x = 20,330.20 × 8,108
  4. Step 4: Simplify right side
    14,732x = 164,837,261.60
  5. Step 5: Solve for x
    x = 164,837,261.60/14,732
  6. Step 6: Final answer
    x = 11,189.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.