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Finding the Third Proportional to 9,043 and 19,431.50

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Solution

The third proportional to 9,043 and 19,431.50 is: 41,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,043 : 19,431.50 = 19,431.50 : x
  2. Step 2: Convert to fraction form
    9,043/19,431.50 = 19,431.50/x
  3. Step 3: Cross multiply
    9,043x = 19,431.50 × 19,431.50
  4. Step 4: Simplify right side
    9,043x = 377,583,192.25
  5. Step 5: Solve for x
    x = 377,583,192.25/9,043
  6. Step 6: Final answer
    x = 41,754.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.