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Finding the Third Proportional to 15,045.75 and 31,812.75

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Solution

The third proportional to 15,045.75 and 31,812.75 is: 67,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.75 : 31,812.75 = 31,812.75 : x
  2. Step 2: Convert to fraction form
    15,045.75/31,812.75 = 31,812.75/x
  3. Step 3: Cross multiply
    15,045.75x = 31,812.75 × 31,812.75
  4. Step 4: Simplify right side
    15,045.75x = 1,012,051,062.56
  5. Step 5: Solve for x
    x = 1,012,051,062.56/15,045.75
  6. Step 6: Final answer
    x = 67,264.91

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.