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Finding the Third Proportional to 4,188 and 7,133

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Solution

The third proportional to 4,188 and 7,133 is: 12,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188 : 7,133 = 7,133 : x
  2. Step 2: Convert to fraction form
    4,188/7,133 = 7,133/x
  3. Step 3: Cross multiply
    4,188x = 7,133 × 7,133
  4. Step 4: Simplify right side
    4,188x = 50,879,689
  5. Step 5: Solve for x
    x = 50,879,689/4,188
  6. Step 6: Final answer
    x = 12,148.92

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.