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Finding the Third Proportional to 19,178 and 41,440

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Solution

The third proportional to 19,178 and 41,440 is: 89,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178 : 41,440 = 41,440 : x
  2. Step 2: Convert to fraction form
    19,178/41,440 = 41,440/x
  3. Step 3: Cross multiply
    19,178x = 41,440 × 41,440
  4. Step 4: Simplify right side
    19,178x = 1,717,273,600
  5. Step 5: Solve for x
    x = 1,717,273,600/19,178
  6. Step 6: Final answer
    x = 89,543.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.