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Finding the Third Proportional to 39,135 and 52,428.75

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Solution

The third proportional to 39,135 and 52,428.75 is: 70,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135 : 52,428.75 = 52,428.75 : x
  2. Step 2: Convert to fraction form
    39,135/52,428.75 = 52,428.75/x
  3. Step 3: Cross multiply
    39,135x = 52,428.75 × 52,428.75
  4. Step 4: Simplify right side
    39,135x = 2,748,773,826.56
  5. Step 5: Solve for x
    x = 2,748,773,826.56/39,135
  6. Step 6: Final answer
    x = 70,238.25

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.