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Finding the Fourth Proportional to 11,641,603.20, 17,462,404.80 and 8,807,251.20

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Solution

The fourth proportional to 11,641,603.20, 17,462,404.80 and 8,807,251.20 is: 13,210,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641,603.20 : 17,462,404.80 = 8,807,251.20 : x
  2. Step 2: Convert to fraction form
    11,641,603.20/17,462,404.80 = 8,807,251.20/x
  3. Step 3: Cross multiply
    11,641,603.20x = 17,462,404.80 × 8,807,251.20
  4. Step 4: Simplify right side
    11,641,603.20x = 153,795,785,629,685.75
  5. Step 5: Solve for x
    x = 153,795,785,629,685.75/11,641,603.20
  6. Step 6: Final answer
    x = 13,210,876.80

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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.