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Finding the Third Proportional to 43,560 and 67,572

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Solution

The third proportional to 43,560 and 67,572 is: 104,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,560 : 67,572 = 67,572 : x
  2. Step 2: Convert to fraction form
    43,560/67,572 = 67,572/x
  3. Step 3: Cross multiply
    43,560x = 67,572 × 67,572
  4. Step 4: Simplify right side
    43,560x = 4,565,975,184
  5. Step 5: Solve for x
    x = 4,565,975,184/43,560
  6. Step 6: Final answer
    x = 104,820.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.