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Finding the Third Proportional to 1,047 and 2,445

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Solution

The third proportional to 1,047 and 2,445 is: 5,709.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047 : 2,445 = 2,445 : x
  2. Step 2: Convert to fraction form
    1,047/2,445 = 2,445/x
  3. Step 3: Cross multiply
    1,047x = 2,445 × 2,445
  4. Step 4: Simplify right side
    1,047x = 5,978,025
  5. Step 5: Solve for x
    x = 5,978,025/1,047
  6. Step 6: Final answer
    x = 5,709.67

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.