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Finding the Fourth Proportional to 18,463.33, 25,479.93 and 10,505.49

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Solution

The fourth proportional to 18,463.33, 25,479.93 and 10,505.49 is: 14,497.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.33 : 25,479.93 = 10,505.49 : x
  2. Step 2: Convert to fraction form
    18,463.33/25,479.93 = 10,505.49/x
  3. Step 3: Cross multiply
    18,463.33x = 25,479.93 × 10,505.49
  4. Step 4: Simplify right side
    18,463.33x = 267,679,149.82
  5. Step 5: Solve for x
    x = 267,679,149.82/18,463.33
  6. Step 6: Final answer
    x = 14,497.88

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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.