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Finding the Third Proportional to 1,613,210.25 and 3,510,912.75

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Solution

The third proportional to 1,613,210.25 and 3,510,912.75 is: 7,640,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,210.25 : 3,510,912.75 = 3,510,912.75 : x
  2. Step 2: Convert to fraction form
    1,613,210.25/3,510,912.75 = 3,510,912.75/x
  3. Step 3: Cross multiply
    1,613,210.25x = 3,510,912.75 × 3,510,912.75
  4. Step 4: Simplify right side
    1,613,210.25x = 12,326,508,338,112.56
  5. Step 5: Solve for x
    x = 12,326,508,338,112.56/1,613,210.25
  6. Step 6: Final answer
    x = 7,640,980.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.