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Finding the Third Proportional to 28,240 and 62,284

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Solution

The third proportional to 28,240 and 62,284 is: 137,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240 : 62,284 = 62,284 : x
  2. Step 2: Convert to fraction form
    28,240/62,284 = 62,284/x
  3. Step 3: Cross multiply
    28,240x = 62,284 × 62,284
  4. Step 4: Simplify right side
    28,240x = 3,879,296,656
  5. Step 5: Solve for x
    x = 3,879,296,656/28,240
  6. Step 6: Final answer
    x = 137,368.86

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.