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Finding the Fourth Proportional to 18,775.67, 25,900.02 and 12,053.75

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Solution

The fourth proportional to 18,775.67, 25,900.02 and 12,053.75 is: 16,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.67 : 25,900.02 = 12,053.75 : x
  2. Step 2: Convert to fraction form
    18,775.67/25,900.02 = 12,053.75/x
  3. Step 3: Cross multiply
    18,775.67x = 25,900.02 × 12,053.75
  4. Step 4: Simplify right side
    18,775.67x = 312,192,236.57
  5. Step 5: Solve for x
    x = 312,192,236.57/18,775.67
  6. Step 6: Final answer
    x = 16,627.49

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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.