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Finding the Third Proportional to 40,603,726 and 66,655,491

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Solution

The third proportional to 40,603,726 and 66,655,491 is: 109,422,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603,726 : 66,655,491 = 66,655,491 : x
  2. Step 2: Convert to fraction form
    40,603,726/66,655,491 = 66,655,491/x
  3. Step 3: Cross multiply
    40,603,726x = 66,655,491 × 66,655,491
  4. Step 4: Simplify right side
    40,603,726x = 4,442,954,480,451,081
  5. Step 5: Solve for x
    x = 4,442,954,480,451,081/40,603,726
  6. Step 6: Final answer
    x = 109,422,334.31

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.