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Finding the Third Proportional to 31,074,938 and 47,043,987

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Solution

The third proportional to 31,074,938 and 47,043,987 is: 71,219,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074,938 : 47,043,987 = 47,043,987 : x
  2. Step 2: Convert to fraction form
    31,074,938/47,043,987 = 47,043,987/x
  3. Step 3: Cross multiply
    31,074,938x = 47,043,987 × 47,043,987
  4. Step 4: Simplify right side
    31,074,938x = 2,213,136,712,856,169
  5. Step 5: Solve for x
    x = 2,213,136,712,856,169/31,074,938
  6. Step 6: Final answer
    x = 71,219,344.44

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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.