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Finding the Third Proportional to 53,412.75 and 76,329

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Solution

The third proportional to 53,412.75 and 76,329 is: 109,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,412.75 : 76,329 = 76,329 : x
  2. Step 2: Convert to fraction form
    53,412.75/76,329 = 76,329/x
  3. Step 3: Cross multiply
    53,412.75x = 76,329 × 76,329
  4. Step 4: Simplify right side
    53,412.75x = 5,826,116,241
  5. Step 5: Solve for x
    x = 5,826,116,241/53,412.75
  6. Step 6: Final answer
    x = 109,077.26

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.