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Finding the Third Proportional to 75,712 and 115,584

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Solution

The third proportional to 75,712 and 115,584 is: 176,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712 : 115,584 = 115,584 : x
  2. Step 2: Convert to fraction form
    75,712/115,584 = 115,584/x
  3. Step 3: Cross multiply
    75,712x = 115,584 × 115,584
  4. Step 4: Simplify right side
    75,712x = 13,359,661,056
  5. Step 5: Solve for x
    x = 13,359,661,056/75,712
  6. Step 6: Final answer
    x = 176,453.68

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.