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Finding the Third Proportional to 34,434 and 74,724

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Solution

The third proportional to 34,434 and 74,724 is: 162,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,434 : 74,724 = 74,724 : x
  2. Step 2: Convert to fraction form
    34,434/74,724 = 74,724/x
  3. Step 3: Cross multiply
    34,434x = 74,724 × 74,724
  4. Step 4: Simplify right side
    34,434x = 5,583,676,176
  5. Step 5: Solve for x
    x = 5,583,676,176/34,434
  6. Step 6: Final answer
    x = 162,155.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.