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Finding the Third Proportional to 1,247,853.75 and 2,684,852.63

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Solution

The third proportional to 1,247,853.75 and 2,684,852.63 is: 5,776,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,853.75 : 2,684,852.63 = 2,684,852.63 : x
  2. Step 2: Convert to fraction form
    1,247,853.75/2,684,852.63 = 2,684,852.63/x
  3. Step 3: Cross multiply
    1,247,853.75x = 2,684,852.63 × 2,684,852.63
  4. Step 4: Simplify right side
    1,247,853.75x = 7,208,433,617,969.39
  5. Step 5: Solve for x
    x = 7,208,433,617,969.39/1,247,853.75
  6. Step 6: Final answer
    x = 5,776,665.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.