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Finding the Fourth Proportional to 6,960,658.80, 10,432,693.80 and 2,917,138.80

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Solution

The fourth proportional to 6,960,658.80, 10,432,693.80 and 2,917,138.80 is: 4,372,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960,658.80 : 10,432,693.80 = 2,917,138.80 : x
  2. Step 2: Convert to fraction form
    6,960,658.80/10,432,693.80 = 2,917,138.80/x
  3. Step 3: Cross multiply
    6,960,658.80x = 10,432,693.80 × 2,917,138.80
  4. Step 4: Simplify right side
    6,960,658.80x = 30,433,615,872,499.44
  5. Step 5: Solve for x
    x = 30,433,615,872,499.44/6,960,658.80
  6. Step 6: Final answer
    x = 4,372,232.10

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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.