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Finding the Fourth Proportional to 18,164.92, 25,068.54 and 11,090.92

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Solution

The fourth proportional to 18,164.92, 25,068.54 and 11,090.92 is: 15,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.92 : 25,068.54 = 11,090.92 : x
  2. Step 2: Convert to fraction form
    18,164.92/25,068.54 = 11,090.92/x
  3. Step 3: Cross multiply
    18,164.92x = 25,068.54 × 11,090.92
  4. Step 4: Simplify right side
    18,164.92x = 278,033,171.66
  5. Step 5: Solve for x
    x = 278,033,171.66/18,164.92
  6. Step 6: Final answer
    x = 15,306.05

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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.