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Finding the Third Proportional to 42,153 and 63,120

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Solution

The third proportional to 42,153 and 63,120 is: 94,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153 : 63,120 = 63,120 : x
  2. Step 2: Convert to fraction form
    42,153/63,120 = 63,120/x
  3. Step 3: Cross multiply
    42,153x = 63,120 × 63,120
  4. Step 4: Simplify right side
    42,153x = 3,984,134,400
  5. Step 5: Solve for x
    x = 3,984,134,400/42,153
  6. Step 6: Final answer
    x = 94,516.03

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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.