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Finding the Fourth Proportional to 19,162,562.60, 28,743,843.90 and 18,406,735.40

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Solution

The fourth proportional to 19,162,562.60, 28,743,843.90 and 18,406,735.40 is: 27,610,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162,562.60 : 28,743,843.90 = 18,406,735.40 : x
  2. Step 2: Convert to fraction form
    19,162,562.60/28,743,843.90 = 18,406,735.40/x
  3. Step 3: Cross multiply
    19,162,562.60x = 28,743,843.90 × 18,406,735.40
  4. Step 4: Simplify right side
    19,162,562.60x = 529,080,329,046,204
  5. Step 5: Solve for x
    x = 529,080,329,046,204/19,162,562.60
  6. Step 6: Final answer
    x = 27,610,103.10

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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.