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Finding the Third Proportional to 31,167.50 and 46,739

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Solution

The third proportional to 31,167.50 and 46,739 is: 70,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,167.50 : 46,739 = 46,739 : x
  2. Step 2: Convert to fraction form
    31,167.50/46,739 = 46,739/x
  3. Step 3: Cross multiply
    31,167.50x = 46,739 × 46,739
  4. Step 4: Simplify right side
    31,167.50x = 2,184,534,121
  5. Step 5: Solve for x
    x = 2,184,534,121/31,167.50
  6. Step 6: Final answer
    x = 70,090.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.