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Finding the Fourth Proportional to 6,859,296.05, 9,465,146.37 and 3,959,621.10

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Solution

The fourth proportional to 6,859,296.05, 9,465,146.37 and 3,959,621.10 is: 5,463,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859,296.05 : 9,465,146.37 = 3,959,621.10 : x
  2. Step 2: Convert to fraction form
    6,859,296.05/9,465,146.37 = 3,959,621.10/x
  3. Step 3: Cross multiply
    6,859,296.05x = 9,465,146.37 × 3,959,621.10
  4. Step 4: Simplify right side
    6,859,296.05x = 37,478,393,281,240.41
  5. Step 5: Solve for x
    x = 37,478,393,281,240.41/6,859,296.05
  6. Step 6: Final answer
    x = 5,463,883.32

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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.