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Finding the Third Proportional to 31,085 and 46,887

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Solution

The third proportional to 31,085 and 46,887 is: 70,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085 : 46,887 = 46,887 : x
  2. Step 2: Convert to fraction form
    31,085/46,887 = 46,887/x
  3. Step 3: Cross multiply
    31,085x = 46,887 × 46,887
  4. Step 4: Simplify right side
    31,085x = 2,198,390,769
  5. Step 5: Solve for x
    x = 2,198,390,769/31,085
  6. Step 6: Final answer
    x = 70,721.92

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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.