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Finding the Fourth Proportional to 18,467.88, 25,486.59 and 10,510.84

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Solution

The fourth proportional to 18,467.88, 25,486.59 and 10,510.84 is: 14,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.88 : 25,486.59 = 10,510.84 : x
  2. Step 2: Convert to fraction form
    18,467.88/25,486.59 = 10,510.84/x
  3. Step 3: Cross multiply
    18,467.88x = 25,486.59 × 10,510.84
  4. Step 4: Simplify right side
    18,467.88x = 267,885,469.64
  5. Step 5: Solve for x
    x = 267,885,469.64/18,467.88
  6. Step 6: Final answer
    x = 14,505.48

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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.