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Finding the Fourth Proportional to 11,834,447.40, 17,751,671.10 and 4,642,279.20

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Solution

The fourth proportional to 11,834,447.40, 17,751,671.10 and 4,642,279.20 is: 6,963,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,834,447.40 : 17,751,671.10 = 4,642,279.20 : x
  2. Step 2: Convert to fraction form
    11,834,447.40/17,751,671.10 = 4,642,279.20/x
  3. Step 3: Cross multiply
    11,834,447.40x = 17,751,671.10 × 4,642,279.20
  4. Step 4: Simplify right side
    11,834,447.40x = 82,408,213,512,771.12
  5. Step 5: Solve for x
    x = 82,408,213,512,771.12/11,834,447.40
  6. Step 6: Final answer
    x = 6,963,418.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.