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Finding the Third Proportional to 18,930.50 and 29,700

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Solution

The third proportional to 18,930.50 and 29,700 is: 46,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.50 : 29,700 = 29,700 : x
  2. Step 2: Convert to fraction form
    18,930.50/29,700 = 29,700/x
  3. Step 3: Cross multiply
    18,930.50x = 29,700 × 29,700
  4. Step 4: Simplify right side
    18,930.50x = 882,090,000
  5. Step 5: Solve for x
    x = 882,090,000/18,930.50
  6. Step 6: Final answer
    x = 46,596.23

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.