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Finding the Fourth Proportional to 18,558, 25,611.66 and 10,176.12

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Solution

The fourth proportional to 18,558, 25,611.66 and 10,176.12 is: 14,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558 : 25,611.66 = 10,176.12 : x
  2. Step 2: Convert to fraction form
    18,558/25,611.66 = 10,176.12/x
  3. Step 3: Cross multiply
    18,558x = 25,611.66 × 10,176.12
  4. Step 4: Simplify right side
    18,558x = 260,627,325.56
  5. Step 5: Solve for x
    x = 260,627,325.56/18,558
  6. Step 6: Final answer
    x = 14,043.93

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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.