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Finding the Fourth Proportional to 18,528.17, 27,785.17 and 9,164.98

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Solution

The fourth proportional to 18,528.17, 27,785.17 and 9,164.98 is: 13,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.17 : 27,785.17 = 9,164.98 : x
  2. Step 2: Convert to fraction form
    18,528.17/27,785.17 = 9,164.98/x
  3. Step 3: Cross multiply
    18,528.17x = 27,785.17 × 9,164.98
  4. Step 4: Simplify right side
    18,528.17x = 254,650,342.60
  5. Step 5: Solve for x
    x = 254,650,342.60/18,528.17
  6. Step 6: Final answer
    x = 13,743.96

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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.