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Finding the Third Proportional to 1,391,118.47 and 3,020,172.54

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Solution

The third proportional to 1,391,118.47 and 3,020,172.54 is: 6,556,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,118.47 : 3,020,172.54 = 3,020,172.54 : x
  2. Step 2: Convert to fraction form
    1,391,118.47/3,020,172.54 = 3,020,172.54/x
  3. Step 3: Cross multiply
    1,391,118.47x = 3,020,172.54 × 3,020,172.54
  4. Step 4: Simplify right side
    1,391,118.47x = 9,121,442,165,707.23
  5. Step 5: Solve for x
    x = 9,121,442,165,707.23/1,391,118.47
  6. Step 6: Final answer
    x = 6,556,912.56

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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.