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Finding the Fourth Proportional to 18,496.80, 25,461.36 and 16,134.80

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Solution

The fourth proportional to 18,496.80, 25,461.36 and 16,134.80 is: 22,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.80 : 25,461.36 = 16,134.80 : x
  2. Step 2: Convert to fraction form
    18,496.80/25,461.36 = 16,134.80/x
  3. Step 3: Cross multiply
    18,496.80x = 25,461.36 × 16,134.80
  4. Step 4: Simplify right side
    18,496.80x = 410,813,951.33
  5. Step 5: Solve for x
    x = 410,813,951.33/18,496.80
  6. Step 6: Final answer
    x = 22,210.00

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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.