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Finding the Third Proportional to 16,421.81 and 36,124.13

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Solution

The third proportional to 16,421.81 and 36,124.13 is: 79,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,421.81 : 36,124.13 = 36,124.13 : x
  2. Step 2: Convert to fraction form
    16,421.81/36,124.13 = 36,124.13/x
  3. Step 3: Cross multiply
    16,421.81x = 36,124.13 × 36,124.13
  4. Step 4: Simplify right side
    16,421.81x = 1,304,952,407.02
  5. Step 5: Solve for x
    x = 1,304,952,407.02/16,421.81
  6. Step 6: Final answer
    x = 79,464.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.