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Finding the Fourth Proportional to 18,205.44, 25,122.90 and 10,248.09

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Solution

The fourth proportional to 18,205.44, 25,122.90 and 10,248.09 is: 14,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.44 : 25,122.90 = 10,248.09 : x
  2. Step 2: Convert to fraction form
    18,205.44/25,122.90 = 10,248.09/x
  3. Step 3: Cross multiply
    18,205.44x = 25,122.90 × 10,248.09
  4. Step 4: Simplify right side
    18,205.44x = 257,461,740.26
  5. Step 5: Solve for x
    x = 257,461,740.26/18,205.44
  6. Step 6: Final answer
    x = 14,142.02

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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.