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Finding the Third Proportional to 8,989.50 and 19,437

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Solution

The third proportional to 8,989.50 and 19,437 is: 42,026.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.50 : 19,437 = 19,437 : x
  2. Step 2: Convert to fraction form
    8,989.50/19,437 = 19,437/x
  3. Step 3: Cross multiply
    8,989.50x = 19,437 × 19,437
  4. Step 4: Simplify right side
    8,989.50x = 377,796,969
  5. Step 5: Solve for x
    x = 377,796,969/8,989.50
  6. Step 6: Final answer
    x = 42,026.47

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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.