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Finding the Third Proportional to 43,130 and 64,427

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Solution

The third proportional to 43,130 and 64,427 is: 96,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,130 : 64,427 = 64,427 : x
  2. Step 2: Convert to fraction form
    43,130/64,427 = 64,427/x
  3. Step 3: Cross multiply
    43,130x = 64,427 × 64,427
  4. Step 4: Simplify right side
    43,130x = 4,150,838,329
  5. Step 5: Solve for x
    x = 4,150,838,329/43,130
  6. Step 6: Final answer
    x = 96,240.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.