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Finding the Third Proportional to 4,389.19 and 5,501.67

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Solution

The third proportional to 4,389.19 and 5,501.67 is: 6,896.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.19 : 5,501.67 = 5,501.67 : x
  2. Step 2: Convert to fraction form
    4,389.19/5,501.67 = 5,501.67/x
  3. Step 3: Cross multiply
    4,389.19x = 5,501.67 × 5,501.67
  4. Step 4: Simplify right side
    4,389.19x = 30,268,393.42
  5. Step 5: Solve for x
    x = 30,268,393.42/4,389.19
  6. Step 6: Final answer
    x = 6,896.13

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.