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Finding the Fourth Proportional to 18,453,053.10, 27,679,579.65 and 18,453,053.10

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Solution

The fourth proportional to 18,453,053.10, 27,679,579.65 and 18,453,053.10 is: 27,679,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,053.10 : 27,679,579.65 = 18,453,053.10 : x
  2. Step 2: Convert to fraction form
    18,453,053.10/27,679,579.65 = 18,453,053.10/x
  3. Step 3: Cross multiply
    18,453,053.10x = 27,679,579.65 × 18,453,053.10
  4. Step 4: Simplify right side
    18,453,053.10x = 510,772,753,067,129.44
  5. Step 5: Solve for x
    x = 510,772,753,067,129.44/18,453,053.10
  6. Step 6: Final answer
    x = 27,679,579.65

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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.