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Finding the Third Proportional to 12,140 and 26,180

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Solution

The third proportional to 12,140 and 26,180 is: 56,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140 : 26,180 = 26,180 : x
  2. Step 2: Convert to fraction form
    12,140/26,180 = 26,180/x
  3. Step 3: Cross multiply
    12,140x = 26,180 × 26,180
  4. Step 4: Simplify right side
    12,140x = 685,392,400
  5. Step 5: Solve for x
    x = 685,392,400/12,140
  6. Step 6: Final answer
    x = 56,457.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.