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Finding the Fourth Proportional to 18,245.27, 27,368.98 and 5,097.64

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Solution

The fourth proportional to 18,245.27, 27,368.98 and 5,097.64 is: 7,646.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.27 : 27,368.98 = 5,097.64 : x
  2. Step 2: Convert to fraction form
    18,245.27/27,368.98 = 5,097.64/x
  3. Step 3: Cross multiply
    18,245.27x = 27,368.98 × 5,097.64
  4. Step 4: Simplify right side
    18,245.27x = 139,517,207.21
  5. Step 5: Solve for x
    x = 139,517,207.21/18,245.27
  6. Step 6: Final answer
    x = 7,646.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.