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Finding the Third Proportional to 56,922 and 91,457

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Solution

The third proportional to 56,922 and 91,457 is: 146,944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,922 : 91,457 = 91,457 : x
  2. Step 2: Convert to fraction form
    56,922/91,457 = 91,457/x
  3. Step 3: Cross multiply
    56,922x = 91,457 × 91,457
  4. Step 4: Simplify right side
    56,922x = 8,364,382,849
  5. Step 5: Solve for x
    x = 8,364,382,849/56,922
  6. Step 6: Final answer
    x = 146,944.64

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.