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Finding the Fourth Proportional to 18,305.66, 27,458.49 and 4,454.66

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Solution

The fourth proportional to 18,305.66, 27,458.49 and 4,454.66 is: 6,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.66 : 27,458.49 = 4,454.66 : x
  2. Step 2: Convert to fraction form
    18,305.66/27,458.49 = 4,454.66/x
  3. Step 3: Cross multiply
    18,305.66x = 27,458.49 × 4,454.66
  4. Step 4: Simplify right side
    18,305.66x = 122,318,077.50
  5. Step 5: Solve for x
    x = 122,318,077.50/18,305.66
  6. Step 6: Final answer
    x = 6,681.98

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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.