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Finding the Third Proportional to 4,172 and 6,130

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Solution

The third proportional to 4,172 and 6,130 is: 9,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172 : 6,130 = 6,130 : x
  2. Step 2: Convert to fraction form
    4,172/6,130 = 6,130/x
  3. Step 3: Cross multiply
    4,172x = 6,130 × 6,130
  4. Step 4: Simplify right side
    4,172x = 37,576,900
  5. Step 5: Solve for x
    x = 37,576,900/4,172
  6. Step 6: Final answer
    x = 9,006.93

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.