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Finding the Third Proportional to 47,788 and 69,828

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Solution

The third proportional to 47,788 and 69,828 is: 102,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,788 : 69,828 = 69,828 : x
  2. Step 2: Convert to fraction form
    47,788/69,828 = 69,828/x
  3. Step 3: Cross multiply
    47,788x = 69,828 × 69,828
  4. Step 4: Simplify right side
    47,788x = 4,875,949,584
  5. Step 5: Solve for x
    x = 4,875,949,584/47,788
  6. Step 6: Final answer
    x = 102,032.93

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.