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Finding the Fourth Proportional to 6,787,695.88, 9,366,466.26 and 3,996,378.52

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Solution

The fourth proportional to 6,787,695.88, 9,366,466.26 and 3,996,378.52 is: 5,514,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787,695.88 : 9,366,466.26 = 3,996,378.52 : x
  2. Step 2: Convert to fraction form
    6,787,695.88/9,366,466.26 = 3,996,378.52/x
  3. Step 3: Cross multiply
    6,787,695.88x = 9,366,466.26 × 3,996,378.52
  4. Step 4: Simplify right side
    6,787,695.88x = 37,431,944,569,768.73
  5. Step 5: Solve for x
    x = 37,431,944,569,768.73/6,787,695.88
  6. Step 6: Final answer
    x = 5,514,676.15

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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.