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Finding the Fourth Proportional to 12,492,059.65, 18,738,089.48 and 12,492,059.65

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Solution

The fourth proportional to 12,492,059.65, 18,738,089.48 and 12,492,059.65 is: 18,738,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,059.65 : 18,738,089.48 = 12,492,059.65 : x
  2. Step 2: Convert to fraction form
    12,492,059.65/18,738,089.48 = 12,492,059.65/x
  3. Step 3: Cross multiply
    12,492,059.65x = 18,738,089.48 × 12,492,059.65
  4. Step 4: Simplify right side
    12,492,059.65x = 234,077,331,511,197.50
  5. Step 5: Solve for x
    x = 234,077,331,511,197.50/12,492,059.65
  6. Step 6: Final answer
    x = 18,738,089.48

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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.