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Finding the Fourth Proportional to 8,473,896.88, 12,707,899.89 and 3,616,007.20

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Solution

The fourth proportional to 8,473,896.88, 12,707,899.89 and 3,616,007.20 is: 5,422,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473,896.88 : 12,707,899.89 = 3,616,007.20 : x
  2. Step 2: Convert to fraction form
    8,473,896.88/12,707,899.89 = 3,616,007.20/x
  3. Step 3: Cross multiply
    8,473,896.88x = 12,707,899.89 × 3,616,007.20
  4. Step 4: Simplify right side
    8,473,896.88x = 45,951,857,499,119.21
  5. Step 5: Solve for x
    x = 45,951,857,499,119.21/8,473,896.88
  6. Step 6: Final answer
    x = 5,422,753.92

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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.