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Finding the Fourth Proportional to 18,541, 25,586.82 and 10,157.80

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Solution

The fourth proportional to 18,541, 25,586.82 and 10,157.80 is: 14,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541 : 25,586.82 = 10,157.80 : x
  2. Step 2: Convert to fraction form
    18,541/25,586.82 = 10,157.80/x
  3. Step 3: Cross multiply
    18,541x = 25,586.82 × 10,157.80
  4. Step 4: Simplify right side
    18,541x = 259,905,800.20
  5. Step 5: Solve for x
    x = 259,905,800.20/18,541
  6. Step 6: Final answer
    x = 14,017.90

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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.