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Finding the Third Proportional to 56,749.25 and 85,913

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Solution

The third proportional to 56,749.25 and 85,913 is: 130,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,749.25 : 85,913 = 85,913 : x
  2. Step 2: Convert to fraction form
    56,749.25/85,913 = 85,913/x
  3. Step 3: Cross multiply
    56,749.25x = 85,913 × 85,913
  4. Step 4: Simplify right side
    56,749.25x = 7,381,043,569
  5. Step 5: Solve for x
    x = 7,381,043,569/56,749.25
  6. Step 6: Final answer
    x = 130,064.16

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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.