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Finding the Third Proportional to 15,605.81 and 34,131.19

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Solution

The third proportional to 15,605.81 and 34,131.19 is: 74,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.81 : 34,131.19 = 34,131.19 : x
  2. Step 2: Convert to fraction form
    15,605.81/34,131.19 = 34,131.19/x
  3. Step 3: Cross multiply
    15,605.81x = 34,131.19 × 34,131.19
  4. Step 4: Simplify right side
    15,605.81x = 1,164,937,960.16
  5. Step 5: Solve for x
    x = 1,164,937,960.16/15,605.81
  6. Step 6: Final answer
    x = 74,647.70

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.