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Finding the Fourth Proportional to 18,763.50, 25,883.39 and 12,050.15

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Solution

The fourth proportional to 18,763.50, 25,883.39 and 12,050.15 is: 16,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.50 : 25,883.39 = 12,050.15 : x
  2. Step 2: Convert to fraction form
    18,763.50/25,883.39 = 12,050.15/x
  3. Step 3: Cross multiply
    18,763.50x = 25,883.39 × 12,050.15
  4. Step 4: Simplify right side
    18,763.50x = 311,898,826.84
  5. Step 5: Solve for x
    x = 311,898,826.84/18,763.50
  6. Step 6: Final answer
    x = 16,622.64

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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.