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Finding the Fourth Proportional to 4,972,002.30, 6,979,698.90 and 4,972,002.30

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Solution

The fourth proportional to 4,972,002.30, 6,979,698.90 and 4,972,002.30 is: 6,979,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972,002.30 : 6,979,698.90 = 4,972,002.30 : x
  2. Step 2: Convert to fraction form
    4,972,002.30/6,979,698.90 = 4,972,002.30/x
  3. Step 3: Cross multiply
    4,972,002.30x = 6,979,698.90 × 4,972,002.30
  4. Step 4: Simplify right side
    4,972,002.30x = 34,703,078,984,107.47
  5. Step 5: Solve for x
    x = 34,703,078,984,107.47/4,972,002.30
  6. Step 6: Final answer
    x = 6,979,698.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.