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Finding the Fourth Proportional to 18,596,442.89, 27,894,942.59 and 7,082,546.03

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Solution

The fourth proportional to 18,596,442.89, 27,894,942.59 and 7,082,546.03 is: 10,623,925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596,442.89 : 27,894,942.59 = 7,082,546.03 : x
  2. Step 2: Convert to fraction form
    18,596,442.89/27,894,942.59 = 7,082,546.03/x
  3. Step 3: Cross multiply
    18,596,442.89x = 27,894,942.59 × 7,082,546.03
  4. Step 4: Simplify right side
    18,596,442.89x = 197,567,214,722,995
  5. Step 5: Solve for x
    x = 197,567,214,722,995/18,596,442.89
  6. Step 6: Final answer
    x = 10,623,925.01

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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.