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Finding the Third Proportional to 2,925 and 4,243.50

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Solution

The third proportional to 2,925 and 4,243.50 is: 6,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925 : 4,243.50 = 4,243.50 : x
  2. Step 2: Convert to fraction form
    2,925/4,243.50 = 4,243.50/x
  3. Step 3: Cross multiply
    2,925x = 4,243.50 × 4,243.50
  4. Step 4: Simplify right side
    2,925x = 18,007,292.25
  5. Step 5: Solve for x
    x = 18,007,292.25/2,925
  6. Step 6: Final answer
    x = 6,156.34

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.