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Finding the Fourth Proportional to 6,879,661.07, 9,494,038.49 and 3,782,318.67

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Solution

The fourth proportional to 6,879,661.07, 9,494,038.49 and 3,782,318.67 is: 5,219,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879,661.07 : 9,494,038.49 = 3,782,318.67 : x
  2. Step 2: Convert to fraction form
    6,879,661.07/9,494,038.49 = 3,782,318.67/x
  3. Step 3: Cross multiply
    6,879,661.07x = 9,494,038.49 × 3,782,318.67
  4. Step 4: Simplify right side
    6,879,661.07x = 35,909,479,015,514.02
  5. Step 5: Solve for x
    x = 35,909,479,015,514.02/6,879,661.07
  6. Step 6: Final answer
    x = 5,219,658.16

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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.