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Finding the Third Proportional to 19,161 and 26,779.50

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Solution

The third proportional to 19,161 and 26,779.50 is: 37,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161 : 26,779.50 = 26,779.50 : x
  2. Step 2: Convert to fraction form
    19,161/26,779.50 = 26,779.50/x
  3. Step 3: Cross multiply
    19,161x = 26,779.50 × 26,779.50
  4. Step 4: Simplify right side
    19,161x = 717,141,620.25
  5. Step 5: Solve for x
    x = 717,141,620.25/19,161
  6. Step 6: Final answer
    x = 37,427.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.