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Finding the Third Proportional to 54,758 and 79,585

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Solution

The third proportional to 54,758 and 79,585 is: 115,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,758 : 79,585 = 79,585 : x
  2. Step 2: Convert to fraction form
    54,758/79,585 = 79,585/x
  3. Step 3: Cross multiply
    54,758x = 79,585 × 79,585
  4. Step 4: Simplify right side
    54,758x = 6,333,772,225
  5. Step 5: Solve for x
    x = 6,333,772,225/54,758
  6. Step 6: Final answer
    x = 115,668.44

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.