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Finding the Third Proportional to 47,531 and 73,572

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Solution

The third proportional to 47,531 and 73,572 is: 113,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,531 : 73,572 = 73,572 : x
  2. Step 2: Convert to fraction form
    47,531/73,572 = 73,572/x
  3. Step 3: Cross multiply
    47,531x = 73,572 × 73,572
  4. Step 4: Simplify right side
    47,531x = 5,412,839,184
  5. Step 5: Solve for x
    x = 5,412,839,184/47,531
  6. Step 6: Final answer
    x = 113,880.19

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.