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Finding the Third Proportional to 18,426,676.50 and 28,903,378.50

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Solution

The third proportional to 18,426,676.50 and 28,903,378.50 is: 45,336,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426,676.50 : 28,903,378.50 = 28,903,378.50 : x
  2. Step 2: Convert to fraction form
    18,426,676.50/28,903,378.50 = 28,903,378.50/x
  3. Step 3: Cross multiply
    18,426,676.50x = 28,903,378.50 × 28,903,378.50
  4. Step 4: Simplify right side
    18,426,676.50x = 835,405,288,714,262.25
  5. Step 5: Solve for x
    x = 835,405,288,714,262.25/18,426,676.50
  6. Step 6: Final answer
    x = 45,336,731.71

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.