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Finding the Fourth Proportional to 11,894,321.70, 16,685,642.70 and 11,894,321.70

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Solution

The fourth proportional to 11,894,321.70, 16,685,642.70 and 11,894,321.70 is: 16,685,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894,321.70 : 16,685,642.70 = 11,894,321.70 : x
  2. Step 2: Convert to fraction form
    11,894,321.70/16,685,642.70 = 11,894,321.70/x
  3. Step 3: Cross multiply
    11,894,321.70x = 16,685,642.70 × 11,894,321.70
  4. Step 4: Simplify right side
    11,894,321.70x = 198,464,402,045,056.56
  5. Step 5: Solve for x
    x = 198,464,402,045,056.56/11,894,321.70
  6. Step 6: Final answer
    x = 16,685,642.70

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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.