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Finding the Third Proportional to 1,572 and 4,038

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Solution

The third proportional to 1,572 and 4,038 is: 10,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572 : 4,038 = 4,038 : x
  2. Step 2: Convert to fraction form
    1,572/4,038 = 4,038/x
  3. Step 3: Cross multiply
    1,572x = 4,038 × 4,038
  4. Step 4: Simplify right side
    1,572x = 16,305,444
  5. Step 5: Solve for x
    x = 16,305,444/1,572
  6. Step 6: Final answer
    x = 10,372.42

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.