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Finding the Third Proportional to 1,313.72 and 2,595.80

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Solution

The third proportional to 1,313.72 and 2,595.80 is: 5,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.72 : 2,595.80 = 2,595.80 : x
  2. Step 2: Convert to fraction form
    1,313.72/2,595.80 = 2,595.80/x
  3. Step 3: Cross multiply
    1,313.72x = 2,595.80 × 2,595.80
  4. Step 4: Simplify right side
    1,313.72x = 6,738,161.42
  5. Step 5: Solve for x
    x = 6,738,161.42/1,313.72
  6. Step 6: Final answer
    x = 5,129.07

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.