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Finding the Third Proportional to 21,300 and 46,347

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Solution

The third proportional to 21,300 and 46,347 is: 100,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300 : 46,347 = 46,347 : x
  2. Step 2: Convert to fraction form
    21,300/46,347 = 46,347/x
  3. Step 3: Cross multiply
    21,300x = 46,347 × 46,347
  4. Step 4: Simplify right side
    21,300x = 2,148,044,409
  5. Step 5: Solve for x
    x = 2,148,044,409/21,300
  6. Step 6: Final answer
    x = 100,847.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.