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Finding the Fourth Proportional to 6,747,419.64, 9,311,671.41 and 3,691,633.89

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Solution

The fourth proportional to 6,747,419.64, 9,311,671.41 and 3,691,633.89 is: 5,094,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747,419.64 : 9,311,671.41 = 3,691,633.89 : x
  2. Step 2: Convert to fraction form
    6,747,419.64/9,311,671.41 = 3,691,633.89/x
  3. Step 3: Cross multiply
    6,747,419.64x = 9,311,671.41 × 3,691,633.89
  4. Step 4: Simplify right side
    6,747,419.64x = 34,375,281,749,700.09
  5. Step 5: Solve for x
    x = 34,375,281,749,700.09/6,747,419.64
  6. Step 6: Final answer
    x = 5,094,581.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.