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Finding the Third Proportional to 1,236,408.75 and 1,867,534.88

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Solution

The third proportional to 1,236,408.75 and 1,867,534.88 is: 2,820,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,408.75 : 1,867,534.88 = 1,867,534.88 : x
  2. Step 2: Convert to fraction form
    1,236,408.75/1,867,534.88 = 1,867,534.88/x
  3. Step 3: Cross multiply
    1,236,408.75x = 1,867,534.88 × 1,867,534.88
  4. Step 4: Simplify right side
    1,236,408.75x = 3,487,686,509,341.27
  5. Step 5: Solve for x
    x = 3,487,686,509,341.27/1,236,408.75
  6. Step 6: Final answer
    x = 2,820,819.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.