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Finding the Third Proportional to 19,180 and 29,970

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Solution

The third proportional to 19,180 and 29,970 is: 46,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180 : 29,970 = 29,970 : x
  2. Step 2: Convert to fraction form
    19,180/29,970 = 29,970/x
  3. Step 3: Cross multiply
    19,180x = 29,970 × 29,970
  4. Step 4: Simplify right side
    19,180x = 898,200,900
  5. Step 5: Solve for x
    x = 898,200,900/19,180
  6. Step 6: Final answer
    x = 46,830.08

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.