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Finding the Third Proportional to 4,836 and 6,430

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Solution

The third proportional to 4,836 and 6,430 is: 8,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836 : 6,430 = 6,430 : x
  2. Step 2: Convert to fraction form
    4,836/6,430 = 6,430/x
  3. Step 3: Cross multiply
    4,836x = 6,430 × 6,430
  4. Step 4: Simplify right side
    4,836x = 41,344,900
  5. Step 5: Solve for x
    x = 41,344,900/4,836
  6. Step 6: Final answer
    x = 8,549.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.