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Finding the Third Proportional to 18,480 and 29,376

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Solution

The third proportional to 18,480 and 29,376 is: 46,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480 : 29,376 = 29,376 : x
  2. Step 2: Convert to fraction form
    18,480/29,376 = 29,376/x
  3. Step 3: Cross multiply
    18,480x = 29,376 × 29,376
  4. Step 4: Simplify right side
    18,480x = 862,949,376
  5. Step 5: Solve for x
    x = 862,949,376/18,480
  6. Step 6: Final answer
    x = 46,696.39

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.