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Finding the Fourth Proportional to 18,635.17, 27,933.30 and 7,549.51

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Solution

The fourth proportional to 18,635.17, 27,933.30 and 7,549.51 is: 11,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.17 : 27,933.30 = 7,549.51 : x
  2. Step 2: Convert to fraction form
    18,635.17/27,933.30 = 7,549.51/x
  3. Step 3: Cross multiply
    18,635.17x = 27,933.30 × 7,549.51
  4. Step 4: Simplify right side
    18,635.17x = 210,882,606.89
  5. Step 5: Solve for x
    x = 210,882,606.89/18,635.17
  6. Step 6: Final answer
    x = 11,316.38

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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.