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Finding the Third Proportional to 8,730 and 19,090

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Solution

The third proportional to 8,730 and 19,090 is: 41,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730 : 19,090 = 19,090 : x
  2. Step 2: Convert to fraction form
    8,730/19,090 = 19,090/x
  3. Step 3: Cross multiply
    8,730x = 19,090 × 19,090
  4. Step 4: Simplify right side
    8,730x = 364,428,100
  5. Step 5: Solve for x
    x = 364,428,100/8,730
  6. Step 6: Final answer
    x = 41,744.34

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.