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Finding the Fourth Proportional to 8,079,825.80, 12,123,978.06 and 3,034,618.76

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Solution

The fourth proportional to 8,079,825.80, 12,123,978.06 and 3,034,618.76 is: 4,553,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,825.80 : 12,123,978.06 = 3,034,618.76 : x
  2. Step 2: Convert to fraction form
    8,079,825.80/12,123,978.06 = 3,034,618.76/x
  3. Step 3: Cross multiply
    8,079,825.80x = 12,123,978.06 × 3,034,618.76
  4. Step 4: Simplify right side
    8,079,825.80x = 36,791,651,266,704.41
  5. Step 5: Solve for x
    x = 36,791,651,266,704.41/8,079,825.80
  6. Step 6: Final answer
    x = 4,553,520.36

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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.