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Finding the Third Proportional to 53,042 and 74,355

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Solution

The third proportional to 53,042 and 74,355 is: 104,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,042 : 74,355 = 74,355 : x
  2. Step 2: Convert to fraction form
    53,042/74,355 = 74,355/x
  3. Step 3: Cross multiply
    53,042x = 74,355 × 74,355
  4. Step 4: Simplify right side
    53,042x = 5,528,666,025
  5. Step 5: Solve for x
    x = 5,528,666,025/53,042
  6. Step 6: Final answer
    x = 104,231.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.