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Finding the Third Proportional to 56,498 and 121,880

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Solution

The third proportional to 56,498 and 121,880 is: 262,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,498 : 121,880 = 121,880 : x
  2. Step 2: Convert to fraction form
    56,498/121,880 = 121,880/x
  3. Step 3: Cross multiply
    56,498x = 121,880 × 121,880
  4. Step 4: Simplify right side
    56,498x = 14,854,734,400
  5. Step 5: Solve for x
    x = 14,854,734,400/56,498
  6. Step 6: Final answer
    x = 262,924.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.