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Finding the Third Proportional to 48,430 and 74,053

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Solution

The third proportional to 48,430 and 74,053 is: 113,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,430 : 74,053 = 74,053 : x
  2. Step 2: Convert to fraction form
    48,430/74,053 = 74,053/x
  3. Step 3: Cross multiply
    48,430x = 74,053 × 74,053
  4. Step 4: Simplify right side
    48,430x = 5,483,846,809
  5. Step 5: Solve for x
    x = 5,483,846,809/48,430
  6. Step 6: Final answer
    x = 113,232.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.