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Finding the Third Proportional to 19,242.94 and 28,787.63

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Solution

The third proportional to 19,242.94 and 28,787.63 is: 43,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.94 : 28,787.63 = 28,787.63 : x
  2. Step 2: Convert to fraction form
    19,242.94/28,787.63 = 28,787.63/x
  3. Step 3: Cross multiply
    19,242.94x = 28,787.63 × 28,787.63
  4. Step 4: Simplify right side
    19,242.94x = 828,727,353.14
  5. Step 5: Solve for x
    x = 828,727,353.14/19,242.94
  6. Step 6: Final answer
    x = 43,066.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.