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Finding the Third Proportional to 51,986.81 and 74,287.13

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Solution

The third proportional to 51,986.81 and 74,287.13 is: 106,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,986.81 : 74,287.13 = 74,287.13 : x
  2. Step 2: Convert to fraction form
    51,986.81/74,287.13 = 74,287.13/x
  3. Step 3: Cross multiply
    51,986.81x = 74,287.13 × 74,287.13
  4. Step 4: Simplify right side
    51,986.81x = 5,518,576,940.77
  5. Step 5: Solve for x
    x = 5,518,576,940.77/51,986.81
  6. Step 6: Final answer
    x = 106,153.40

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.