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Finding the Fourth Proportional to 18,264.58, 27,412.41 and 7,179.01

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Solution

The fourth proportional to 18,264.58, 27,412.41 and 7,179.01 is: 10,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.58 : 27,412.41 = 7,179.01 : x
  2. Step 2: Convert to fraction form
    18,264.58/27,412.41 = 7,179.01/x
  3. Step 3: Cross multiply
    18,264.58x = 27,412.41 × 7,179.01
  4. Step 4: Simplify right side
    18,264.58x = 196,793,965.51
  5. Step 5: Solve for x
    x = 196,793,965.51/18,264.58
  6. Step 6: Final answer
    x = 10,774.62

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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.