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Finding the Fourth Proportional to 17,382,630.60, 26,073,945.90 and 12,903,654.60

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Solution

The fourth proportional to 17,382,630.60, 26,073,945.90 and 12,903,654.60 is: 19,355,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,382,630.60 : 26,073,945.90 = 12,903,654.60 : x
  2. Step 2: Convert to fraction form
    17,382,630.60/26,073,945.90 = 12,903,654.60/x
  3. Step 3: Cross multiply
    17,382,630.60x = 26,073,945.90 × 12,903,654.60
  4. Step 4: Simplify right side
    17,382,630.60x = 336,449,191,952,686.12
  5. Step 5: Solve for x
    x = 336,449,191,952,686.12/17,382,630.60
  6. Step 6: Final answer
    x = 19,355,481.90

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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.