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Finding the Third Proportional to 1,404 and 3,072

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Solution

The third proportional to 1,404 and 3,072 is: 6,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404 : 3,072 = 3,072 : x
  2. Step 2: Convert to fraction form
    1,404/3,072 = 3,072/x
  3. Step 3: Cross multiply
    1,404x = 3,072 × 3,072
  4. Step 4: Simplify right side
    1,404x = 9,437,184
  5. Step 5: Solve for x
    x = 9,437,184/1,404
  6. Step 6: Final answer
    x = 6,721.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.