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Finding the Fourth Proportional to 18,493,992.90, 25,948,277.10 and 18,493,992.90

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Solution

The fourth proportional to 18,493,992.90, 25,948,277.10 and 18,493,992.90 is: 25,948,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493,992.90 : 25,948,277.10 = 18,493,992.90 : x
  2. Step 2: Convert to fraction form
    18,493,992.90/25,948,277.10 = 18,493,992.90/x
  3. Step 3: Cross multiply
    18,493,992.90x = 25,948,277.10 × 18,493,992.90
  4. Step 4: Simplify right side
    18,493,992.90x = 479,887,252,454,632.56
  5. Step 5: Solve for x
    x = 479,887,252,454,632.56/18,493,992.90
  6. Step 6: Final answer
    x = 25,948,277.10

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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.