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Finding the Fourth Proportional to 11,379,285.40, 17,068,928.10 and 11,379,285.40

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Solution

The fourth proportional to 11,379,285.40, 17,068,928.10 and 11,379,285.40 is: 17,068,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379,285.40 : 17,068,928.10 = 11,379,285.40 : x
  2. Step 2: Convert to fraction form
    11,379,285.40/17,068,928.10 = 11,379,285.40/x
  3. Step 3: Cross multiply
    11,379,285.40x = 17,068,928.10 × 11,379,285.40
  4. Step 4: Simplify right side
    11,379,285.40x = 194,232,204,321,979.75
  5. Step 5: Solve for x
    x = 194,232,204,321,979.75/11,379,285.40
  6. Step 6: Final answer
    x = 17,068,928.10

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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.