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Finding the Third Proportional to 56,130 and 84,195

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Solution

The third proportional to 56,130 and 84,195 is: 126,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,130 : 84,195 = 84,195 : x
  2. Step 2: Convert to fraction form
    56,130/84,195 = 84,195/x
  3. Step 3: Cross multiply
    56,130x = 84,195 × 84,195
  4. Step 4: Simplify right side
    56,130x = 7,088,798,025
  5. Step 5: Solve for x
    x = 7,088,798,025/56,130
  6. Step 6: Final answer
    x = 126,292.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.