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Finding the Third Proportional to 28,480 and 62,445

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Solution

The third proportional to 28,480 and 62,445 is: 136,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480 : 62,445 = 62,445 : x
  2. Step 2: Convert to fraction form
    28,480/62,445 = 62,445/x
  3. Step 3: Cross multiply
    28,480x = 62,445 × 62,445
  4. Step 4: Simplify right side
    28,480x = 3,899,378,025
  5. Step 5: Solve for x
    x = 3,899,378,025/28,480
  6. Step 6: Final answer
    x = 136,916.36

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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.