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Finding the Third Proportional to 18,959,953.50 and 28,639,184.34

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Solution

The third proportional to 18,959,953.50 and 28,639,184.34 is: 43,259,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959,953.50 : 28,639,184.34 = 28,639,184.34 : x
  2. Step 2: Convert to fraction form
    18,959,953.50/28,639,184.34 = 28,639,184.34/x
  3. Step 3: Cross multiply
    18,959,953.50x = 28,639,184.34 × 28,639,184.34
  4. Step 4: Simplify right side
    18,959,953.50x = 820,202,879,875,295.12
  5. Step 5: Solve for x
    x = 820,202,879,875,295.12/18,959,953.50
  6. Step 6: Final answer
    x = 43,259,751.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.