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Finding the Fourth Proportional to 18,589.46, 25,653.02 and 10,631.21

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Solution

The fourth proportional to 18,589.46, 25,653.02 and 10,631.21 is: 14,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.46 : 25,653.02 = 10,631.21 : x
  2. Step 2: Convert to fraction form
    18,589.46/25,653.02 = 10,631.21/x
  3. Step 3: Cross multiply
    18,589.46x = 25,653.02 × 10,631.21
  4. Step 4: Simplify right side
    18,589.46x = 272,722,461.33
  5. Step 5: Solve for x
    x = 272,722,461.33/18,589.46
  6. Step 6: Final answer
    x = 14,670.82

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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.