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Finding the Fourth Proportional to 6,957,890.06, 9,601,878.94 and 3,902,077.58

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Solution

The fourth proportional to 6,957,890.06, 9,601,878.94 and 3,902,077.58 is: 5,384,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957,890.06 : 9,601,878.94 = 3,902,077.58 : x
  2. Step 2: Convert to fraction form
    6,957,890.06/9,601,878.94 = 3,902,077.58/x
  3. Step 3: Cross multiply
    6,957,890.06x = 9,601,878.94 × 3,902,077.58
  4. Step 4: Simplify right side
    6,957,890.06x = 37,467,276,537,648.16
  5. Step 5: Solve for x
    x = 37,467,276,537,648.16/6,957,890.06
  6. Step 6: Final answer
    x = 5,384,861.82

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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.