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Finding the Third Proportional to 56,784 and 79,623

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Solution

The third proportional to 56,784 and 79,623 is: 111,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784 : 79,623 = 79,623 : x
  2. Step 2: Convert to fraction form
    56,784/79,623 = 79,623/x
  3. Step 3: Cross multiply
    56,784x = 79,623 × 79,623
  4. Step 4: Simplify right side
    56,784x = 6,339,822,129
  5. Step 5: Solve for x
    x = 6,339,822,129/56,784
  6. Step 6: Final answer
    x = 111,648.04

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.