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Finding the Third Proportional to 20,176,440 and 28,311,576

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Solution

The third proportional to 20,176,440 and 28,311,576 is: 39,726,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176,440 : 28,311,576 = 28,311,576 : x
  2. Step 2: Convert to fraction form
    20,176,440/28,311,576 = 28,311,576/x
  3. Step 3: Cross multiply
    20,176,440x = 28,311,576 × 28,311,576
  4. Step 4: Simplify right side
    20,176,440x = 801,545,335,603,776
  5. Step 5: Solve for x
    x = 801,545,335,603,776/20,176,440
  6. Step 6: Final answer
    x = 39,726,796.98

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.