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Finding the Fourth Proportional to 16,808,516.55, 25,212,774.83 and 16,808,516.55

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Solution

The fourth proportional to 16,808,516.55, 25,212,774.83 and 16,808,516.55 is: 25,212,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,808,516.55 : 25,212,774.83 = 16,808,516.55 : x
  2. Step 2: Convert to fraction form
    16,808,516.55/25,212,774.83 = 16,808,516.55/x
  3. Step 3: Cross multiply
    16,808,516.55x = 25,212,774.83 × 16,808,516.55
  4. Step 4: Simplify right side
    16,808,516.55x = 423,789,342,917,435.88
  5. Step 5: Solve for x
    x = 423,789,342,917,435.88/16,808,516.55
  6. Step 6: Final answer
    x = 25,212,774.83

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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.