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Finding the Third Proportional to 18,045.38 and 27,772.50

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Solution

The third proportional to 18,045.38 and 27,772.50 is: 42,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.38 : 27,772.50 = 27,772.50 : x
  2. Step 2: Convert to fraction form
    18,045.38/27,772.50 = 27,772.50/x
  3. Step 3: Cross multiply
    18,045.38x = 27,772.50 × 27,772.50
  4. Step 4: Simplify right side
    18,045.38x = 771,311,756.25
  5. Step 5: Solve for x
    x = 771,311,756.25/18,045.38
  6. Step 6: Final answer
    x = 42,742.91

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.