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Finding the Third Proportional to 21,491 and 46,157

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Solution

The third proportional to 21,491 and 46,157 is: 99,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491 : 46,157 = 46,157 : x
  2. Step 2: Convert to fraction form
    21,491/46,157 = 46,157/x
  3. Step 3: Cross multiply
    21,491x = 46,157 × 46,157
  4. Step 4: Simplify right side
    21,491x = 2,130,468,649
  5. Step 5: Solve for x
    x = 2,130,468,649/21,491
  6. Step 6: Final answer
    x = 99,133.06

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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.