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Finding the Fourth Proportional to 19,427,992.20, 27,239,002.20 and 19,427,992.20

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Solution

The fourth proportional to 19,427,992.20, 27,239,002.20 and 19,427,992.20 is: 27,239,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427,992.20 : 27,239,002.20 = 19,427,992.20 : x
  2. Step 2: Convert to fraction form
    19,427,992.20/27,239,002.20 = 19,427,992.20/x
  3. Step 3: Cross multiply
    19,427,992.20x = 27,239,002.20 × 19,427,992.20
  4. Step 4: Simplify right side
    19,427,992.20x = 529,199,122,277,382.81
  5. Step 5: Solve for x
    x = 529,199,122,277,382.81/19,427,992.20
  6. Step 6: Final answer
    x = 27,239,002.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.