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Finding the Third Proportional to 8,891.50 and 19,457

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Solution

The third proportional to 8,891.50 and 19,457 is: 42,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.50 : 19,457 = 19,457 : x
  2. Step 2: Convert to fraction form
    8,891.50/19,457 = 19,457/x
  3. Step 3: Cross multiply
    8,891.50x = 19,457 × 19,457
  4. Step 4: Simplify right side
    8,891.50x = 378,574,849
  5. Step 5: Solve for x
    x = 378,574,849/8,891.50
  6. Step 6: Final answer
    x = 42,577.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.