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Finding the Fourth Proportional to 12,492,049.40, 18,738,074.10 and 12,492,049.40

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Solution

The fourth proportional to 12,492,049.40, 18,738,074.10 and 12,492,049.40 is: 18,738,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,049.40 : 18,738,074.10 = 12,492,049.40 : x
  2. Step 2: Convert to fraction form
    12,492,049.40/18,738,074.10 = 12,492,049.40/x
  3. Step 3: Cross multiply
    12,492,049.40x = 18,738,074.10 × 12,492,049.40
  4. Step 4: Simplify right side
    12,492,049.40x = 234,076,947,318,060.56
  5. Step 5: Solve for x
    x = 234,076,947,318,060.56/12,492,049.40
  6. Step 6: Final answer
    x = 18,738,074.10

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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.