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Finding the Third Proportional to 18,612 and 28,950.75

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Solution

The third proportional to 18,612 and 28,950.75 is: 45,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612 : 28,950.75 = 28,950.75 : x
  2. Step 2: Convert to fraction form
    18,612/28,950.75 = 28,950.75/x
  3. Step 3: Cross multiply
    18,612x = 28,950.75 × 28,950.75
  4. Step 4: Simplify right side
    18,612x = 838,145,925.56
  5. Step 5: Solve for x
    x = 838,145,925.56/18,612
  6. Step 6: Final answer
    x = 45,032.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.