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Finding the Fourth Proportional to 18,579,602.20, 27,872,992.33 and 7,064,174.11

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Solution

The fourth proportional to 18,579,602.20, 27,872,992.33 and 7,064,174.11 is: 10,597,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579,602.20 : 27,872,992.33 = 7,064,174.11 : x
  2. Step 2: Convert to fraction form
    18,579,602.20/27,872,992.33 = 7,064,174.11/x
  3. Step 3: Cross multiply
    18,579,602.20x = 27,872,992.33 × 7,064,174.11
  4. Step 4: Simplify right side
    18,579,602.20x = 196,899,670,864,327.28
  5. Step 5: Solve for x
    x = 196,899,670,864,327.28/18,579,602.20
  6. Step 6: Final answer
    x = 10,597,625.76

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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.