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Finding the Third Proportional to 4,058 and 4,430

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Solution

The third proportional to 4,058 and 4,430 is: 4,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,058 : 4,430 = 4,430 : x
  2. Step 2: Convert to fraction form
    4,058/4,430 = 4,430/x
  3. Step 3: Cross multiply
    4,058x = 4,430 × 4,430
  4. Step 4: Simplify right side
    4,058x = 19,624,900
  5. Step 5: Solve for x
    x = 19,624,900/4,058
  6. Step 6: Final answer
    x = 4,836.10

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.