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Finding the Third Proportional to 17,490 and 26,239.50

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Solution

The third proportional to 17,490 and 26,239.50 is: 39,366.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,490 : 26,239.50 = 26,239.50 : x
  2. Step 2: Convert to fraction form
    17,490/26,239.50 = 26,239.50/x
  3. Step 3: Cross multiply
    17,490x = 26,239.50 × 26,239.50
  4. Step 4: Simplify right side
    17,490x = 688,511,360.25
  5. Step 5: Solve for x
    x = 688,511,360.25/17,490
  6. Step 6: Final answer
    x = 39,366.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.