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Finding the Fourth Proportional to 18,051.66, 27,078.30 and 6,366.06

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Solution

The fourth proportional to 18,051.66, 27,078.30 and 6,366.06 is: 9,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.66 : 27,078.30 = 6,366.06 : x
  2. Step 2: Convert to fraction form
    18,051.66/27,078.30 = 6,366.06/x
  3. Step 3: Cross multiply
    18,051.66x = 27,078.30 × 6,366.06
  4. Step 4: Simplify right side
    18,051.66x = 172,382,082.50
  5. Step 5: Solve for x
    x = 172,382,082.50/18,051.66
  6. Step 6: Final answer
    x = 9,549.38

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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.