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Finding the Fourth Proportional to 18,675, 25,773.12 and 10,293.12

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Solution

The fourth proportional to 18,675, 25,773.12 and 10,293.12 is: 14,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675 : 25,773.12 = 10,293.12 : x
  2. Step 2: Convert to fraction form
    18,675/25,773.12 = 10,293.12/x
  3. Step 3: Cross multiply
    18,675x = 25,773.12 × 10,293.12
  4. Step 4: Simplify right side
    18,675x = 265,285,816.93
  5. Step 5: Solve for x
    x = 265,285,816.93/18,675
  6. Step 6: Final answer
    x = 14,205.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.