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Finding the Fourth Proportional to 18,454.62, 27,539.08 and 16,485.66

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Solution

The fourth proportional to 18,454.62, 27,539.08 and 16,485.66 is: 24,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.62 : 27,539.08 = 16,485.66 : x
  2. Step 2: Convert to fraction form
    18,454.62/27,539.08 = 16,485.66/x
  3. Step 3: Cross multiply
    18,454.62x = 27,539.08 × 16,485.66
  4. Step 4: Simplify right side
    18,454.62x = 453,999,909.59
  5. Step 5: Solve for x
    x = 453,999,909.59/18,454.62
  6. Step 6: Final answer
    x = 24,600.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.