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Finding the Fourth Proportional to 13,146,722.30, 19,682,758.65 and 13,146,722.30

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Solution

The fourth proportional to 13,146,722.30, 19,682,758.65 and 13,146,722.30 is: 19,682,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,722.30 : 19,682,758.65 = 13,146,722.30 : x
  2. Step 2: Convert to fraction form
    13,146,722.30/19,682,758.65 = 13,146,722.30/x
  3. Step 3: Cross multiply
    13,146,722.30x = 19,682,758.65 × 13,146,722.30
  4. Step 4: Simplify right side
    13,146,722.30x = 258,763,762,069,472.88
  5. Step 5: Solve for x
    x = 258,763,762,069,472.88/13,146,722.30
  6. Step 6: Final answer
    x = 19,682,758.65

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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.