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Finding the Third Proportional to 31,261,176 and 47,218,428

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Solution

The third proportional to 31,261,176 and 47,218,428 is: 71,321,051.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261,176 : 47,218,428 = 47,218,428 : x
  2. Step 2: Convert to fraction form
    31,261,176/47,218,428 = 47,218,428/x
  3. Step 3: Cross multiply
    31,261,176x = 47,218,428 × 47,218,428
  4. Step 4: Simplify right side
    31,261,176x = 2,229,579,942,791,184
  5. Step 5: Solve for x
    x = 2,229,579,942,791,184/31,261,176
  6. Step 6: Final answer
    x = 71,321,051.48

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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.