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Finding the Third Proportional to 21,312 and 46,017

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Solution

The third proportional to 21,312 and 46,017 is: 99,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312 : 46,017 = 46,017 : x
  2. Step 2: Convert to fraction form
    21,312/46,017 = 46,017/x
  3. Step 3: Cross multiply
    21,312x = 46,017 × 46,017
  4. Step 4: Simplify right side
    21,312x = 2,117,564,289
  5. Step 5: Solve for x
    x = 2,117,564,289/21,312
  6. Step 6: Final answer
    x = 99,360.19

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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.