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Finding the Third Proportional to 2,980,159.31 and 6,436,742.63

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Solution

The third proportional to 2,980,159.31 and 6,436,742.63 is: 13,902,496.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980,159.31 : 6,436,742.63 = 6,436,742.63 : x
  2. Step 2: Convert to fraction form
    2,980,159.31/6,436,742.63 = 6,436,742.63/x
  3. Step 3: Cross multiply
    2,980,159.31x = 6,436,742.63 × 6,436,742.63
  4. Step 4: Simplify right side
    2,980,159.31x = 41,431,655,620,491.89
  5. Step 5: Solve for x
    x = 41,431,655,620,491.89/2,980,159.31
  6. Step 6: Final answer
    x = 13,902,496.91

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.