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Finding the Fourth Proportional to 6,347,749.98, 8,759,896.68 and 3,447,140.08

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Solution

The fourth proportional to 6,347,749.98, 8,759,896.68 and 3,447,140.08 is: 4,757,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347,749.98 : 8,759,896.68 = 3,447,140.08 : x
  2. Step 2: Convert to fraction form
    6,347,749.98/8,759,896.68 = 3,447,140.08/x
  3. Step 3: Cross multiply
    6,347,749.98x = 8,759,896.68 × 3,447,140.08
  4. Step 4: Simplify right side
    6,347,749.98x = 30,196,590,942,286.93
  5. Step 5: Solve for x
    x = 30,196,590,942,286.93/6,347,749.98
  6. Step 6: Final answer
    x = 4,757,054.24

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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.