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Finding the Fourth Proportional to 18,164.57, 25,066.30 and 10,611.60

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Solution

The fourth proportional to 18,164.57, 25,066.30 and 10,611.60 is: 14,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.57 : 25,066.30 = 10,611.60 : x
  2. Step 2: Convert to fraction form
    18,164.57/25,066.30 = 10,611.60/x
  3. Step 3: Cross multiply
    18,164.57x = 25,066.30 × 10,611.60
  4. Step 4: Simplify right side
    18,164.57x = 265,993,549.08
  5. Step 5: Solve for x
    x = 265,993,549.08/18,164.57
  6. Step 6: Final answer
    x = 14,643.54

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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.