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Finding the Third Proportional to 21,979,440 and 32,310,576

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Solution

The third proportional to 21,979,440 and 32,310,576 is: 47,497,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979,440 : 32,310,576 = 32,310,576 : x
  2. Step 2: Convert to fraction form
    21,979,440/32,310,576 = 32,310,576/x
  3. Step 3: Cross multiply
    21,979,440x = 32,310,576 × 32,310,576
  4. Step 4: Simplify right side
    21,979,440x = 1,043,973,321,451,776
  5. Step 5: Solve for x
    x = 1,043,973,321,451,776/21,979,440
  6. Step 6: Final answer
    x = 47,497,721.57

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.