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Finding the Fourth Proportional to 6,464,938.62, 9,703,718.91 and 5,339,169.43

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Solution

The fourth proportional to 6,464,938.62, 9,703,718.91 and 5,339,169.43 is: 8,013,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464,938.62 : 9,703,718.91 = 5,339,169.43 : x
  2. Step 2: Convert to fraction form
    6,464,938.62/9,703,718.91 = 5,339,169.43/x
  3. Step 3: Cross multiply
    6,464,938.62x = 9,703,718.91 × 5,339,169.43
  4. Step 4: Simplify right side
    6,464,938.62x = 51,809,799,361,584.92
  5. Step 5: Solve for x
    x = 51,809,799,361,584.92/6,464,938.62
  6. Step 6: Final answer
    x = 8,013,966.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.