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Finding the Fourth Proportional to 18,665.06, 27,999.06 and 6,184.58

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Solution

The fourth proportional to 18,665.06, 27,999.06 and 6,184.58 is: 9,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.06 : 27,999.06 = 6,184.58 : x
  2. Step 2: Convert to fraction form
    18,665.06/27,999.06 = 6,184.58/x
  3. Step 3: Cross multiply
    18,665.06x = 27,999.06 × 6,184.58
  4. Step 4: Simplify right side
    18,665.06x = 173,162,426.49
  5. Step 5: Solve for x
    x = 173,162,426.49/18,665.06
  6. Step 6: Final answer
    x = 9,277.36

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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.