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Finding the Third Proportional to 43,290 and 64,760.75

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Solution

The third proportional to 43,290 and 64,760.75 is: 96,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,290 : 64,760.75 = 64,760.75 : x
  2. Step 2: Convert to fraction form
    43,290/64,760.75 = 64,760.75/x
  3. Step 3: Cross multiply
    43,290x = 64,760.75 × 64,760.75
  4. Step 4: Simplify right side
    43,290x = 4,193,954,740.56
  5. Step 5: Solve for x
    x = 4,193,954,740.56/43,290
  6. Step 6: Final answer
    x = 96,880.45

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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.