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Finding the Third Proportional to 979.91 and 1,495.81

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Solution

The third proportional to 979.91 and 1,495.81 is: 2,283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.91 : 1,495.81 = 1,495.81 : x
  2. Step 2: Convert to fraction form
    979.91/1,495.81 = 1,495.81/x
  3. Step 3: Cross multiply
    979.91x = 1,495.81 × 1,495.81
  4. Step 4: Simplify right side
    979.91x = 2,237,449.19
  5. Step 5: Solve for x
    x = 2,237,449.19/979.91
  6. Step 6: Final answer
    x = 2,283.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.