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Finding the Fourth Proportional to 18,636.48, 27,964.44 and 7,551.36

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Solution

The fourth proportional to 18,636.48, 27,964.44 and 7,551.36 is: 11,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.48 : 27,964.44 = 7,551.36 : x
  2. Step 2: Convert to fraction form
    18,636.48/27,964.44 = 7,551.36/x
  3. Step 3: Cross multiply
    18,636.48x = 27,964.44 × 7,551.36
  4. Step 4: Simplify right side
    18,636.48x = 211,169,553.64
  5. Step 5: Solve for x
    x = 211,169,553.64/18,636.48
  6. Step 6: Final answer
    x = 11,330.98

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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.