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Finding the Fourth Proportional to 18,693.72, 25,797.24 and 10,310.22

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Solution

The fourth proportional to 18,693.72, 25,797.24 and 10,310.22 is: 14,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.72 : 25,797.24 = 10,310.22 : x
  2. Step 2: Convert to fraction form
    18,693.72/25,797.24 = 10,310.22/x
  3. Step 3: Cross multiply
    18,693.72x = 25,797.24 × 10,310.22
  4. Step 4: Simplify right side
    18,693.72x = 265,975,219.79
  5. Step 5: Solve for x
    x = 265,975,219.79/18,693.72
  6. Step 6: Final answer
    x = 14,228.05

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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.