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Finding the Third Proportional to 28,639.13 and 61,381.13

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Solution

The third proportional to 28,639.13 and 61,381.13 is: 131,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.13 : 61,381.13 = 61,381.13 : x
  2. Step 2: Convert to fraction form
    28,639.13/61,381.13 = 61,381.13/x
  3. Step 3: Cross multiply
    28,639.13x = 61,381.13 × 61,381.13
  4. Step 4: Simplify right side
    28,639.13x = 3,767,642,506.27
  5. Step 5: Solve for x
    x = 3,767,642,506.27/28,639.13
  6. Step 6: Final answer
    x = 131,555.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.