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Finding the Fourth Proportional to 7,895,999.70, 11,843,999.55 and 7,329,129.30

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Solution

The fourth proportional to 7,895,999.70, 11,843,999.55 and 7,329,129.30 is: 10,993,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895,999.70 : 11,843,999.55 = 7,329,129.30 : x
  2. Step 2: Convert to fraction form
    7,895,999.70/11,843,999.55 = 7,329,129.30/x
  3. Step 3: Cross multiply
    7,895,999.70x = 11,843,999.55 × 7,329,129.30
  4. Step 4: Simplify right side
    7,895,999.70x = 86,806,204,131,091.81
  5. Step 5: Solve for x
    x = 86,806,204,131,091.81/7,895,999.70
  6. Step 6: Final answer
    x = 10,993,693.95

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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.