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Finding the Third Proportional to 47,254 and 64,205

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Solution

The third proportional to 47,254 and 64,205 is: 87,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,254 : 64,205 = 64,205 : x
  2. Step 2: Convert to fraction form
    47,254/64,205 = 64,205/x
  3. Step 3: Cross multiply
    47,254x = 64,205 × 64,205
  4. Step 4: Simplify right side
    47,254x = 4,122,282,025
  5. Step 5: Solve for x
    x = 4,122,282,025/47,254
  6. Step 6: Final answer
    x = 87,236.68

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.