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Finding the Fourth Proportional to 8,579,310.56, 11,840,499.12 and 4,957,638.56

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Solution

The fourth proportional to 8,579,310.56, 11,840,499.12 and 4,957,638.56 is: 6,842,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,310.56 : 11,840,499.12 = 4,957,638.56 : x
  2. Step 2: Convert to fraction form
    8,579,310.56/11,840,499.12 = 4,957,638.56/x
  3. Step 3: Cross multiply
    8,579,310.56x = 11,840,499.12 × 4,957,638.56
  4. Step 4: Simplify right side
    8,579,310.56x = 58,700,915,006,958.05
  5. Step 5: Solve for x
    x = 58,700,915,006,958.05/8,579,310.56
  6. Step 6: Final answer
    x = 6,842,148.28

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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.