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Finding the Third Proportional to 3,421,742.50 and 5,296,409.50

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Solution

The third proportional to 3,421,742.50 and 5,296,409.50 is: 8,198,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421,742.50 : 5,296,409.50 = 5,296,409.50 : x
  2. Step 2: Convert to fraction form
    3,421,742.50/5,296,409.50 = 5,296,409.50/x
  3. Step 3: Cross multiply
    3,421,742.50x = 5,296,409.50 × 5,296,409.50
  4. Step 4: Simplify right side
    3,421,742.50x = 28,051,953,591,690.25
  5. Step 5: Solve for x
    x = 28,051,953,591,690.25/3,421,742.50
  6. Step 6: Final answer
    x = 8,198,148.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.