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Finding the Fourth Proportional to 18,185.76, 25,094.04 and 10,630.60

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Solution

The fourth proportional to 18,185.76, 25,094.04 and 10,630.60 is: 14,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.76 : 25,094.04 = 10,630.60 : x
  2. Step 2: Convert to fraction form
    18,185.76/25,094.04 = 10,630.60/x
  3. Step 3: Cross multiply
    18,185.76x = 25,094.04 × 10,630.60
  4. Step 4: Simplify right side
    18,185.76x = 266,764,701.62
  5. Step 5: Solve for x
    x = 266,764,701.62/18,185.76
  6. Step 6: Final answer
    x = 14,668.88

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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.