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Finding the Third Proportional to 57,258 and 85,893.75

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Solution

The third proportional to 57,258 and 85,893.75 is: 128,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,258 : 85,893.75 = 85,893.75 : x
  2. Step 2: Convert to fraction form
    57,258/85,893.75 = 85,893.75/x
  3. Step 3: Cross multiply
    57,258x = 85,893.75 × 85,893.75
  4. Step 4: Simplify right side
    57,258x = 7,377,736,289.06
  5. Step 5: Solve for x
    x = 7,377,736,289.06/57,258
  6. Step 6: Final answer
    x = 128,850.75

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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.