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Finding the Third Proportional to 43,127 and 64,421

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Solution

The third proportional to 43,127 and 64,421 is: 96,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,127 : 64,421 = 64,421 : x
  2. Step 2: Convert to fraction form
    43,127/64,421 = 64,421/x
  3. Step 3: Cross multiply
    43,127x = 64,421 × 64,421
  4. Step 4: Simplify right side
    43,127x = 4,150,065,241
  5. Step 5: Solve for x
    x = 4,150,065,241/43,127
  6. Step 6: Final answer
    x = 96,228.93

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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.