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Finding the Third Proportional to 4,207 and 4,831

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Solution

The third proportional to 4,207 and 4,831 is: 5,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207 : 4,831 = 4,831 : x
  2. Step 2: Convert to fraction form
    4,207/4,831 = 4,831/x
  3. Step 3: Cross multiply
    4,207x = 4,831 × 4,831
  4. Step 4: Simplify right side
    4,207x = 23,338,561
  5. Step 5: Solve for x
    x = 23,338,561/4,207
  6. Step 6: Final answer
    x = 5,547.55

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.