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Finding the Third Proportional to 2,984.63 and 4,389.75

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Solution

The third proportional to 2,984.63 and 4,389.75 is: 6,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.63 : 4,389.75 = 4,389.75 : x
  2. Step 2: Convert to fraction form
    2,984.63/4,389.75 = 4,389.75/x
  3. Step 3: Cross multiply
    2,984.63x = 4,389.75 × 4,389.75
  4. Step 4: Simplify right side
    2,984.63x = 19,269,905.06
  5. Step 5: Solve for x
    x = 19,269,905.06/2,984.63
  6. Step 6: Final answer
    x = 6,456.39

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.