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Finding the Fourth Proportional to 18,368.24, 27,541.40 and 7,276.48

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Solution

The fourth proportional to 18,368.24, 27,541.40 and 7,276.48 is: 10,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.24 : 27,541.40 = 7,276.48 : x
  2. Step 2: Convert to fraction form
    18,368.24/27,541.40 = 7,276.48/x
  3. Step 3: Cross multiply
    18,368.24x = 27,541.40 × 7,276.48
  4. Step 4: Simplify right side
    18,368.24x = 200,404,446.27
  5. Step 5: Solve for x
    x = 200,404,446.27/18,368.24
  6. Step 6: Final answer
    x = 10,910.38

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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.