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Finding the Fourth Proportional to 18,614.60, 27,905.70 and 16,646.30

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Solution

The fourth proportional to 18,614.60, 27,905.70 and 16,646.30 is: 24,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.60 : 27,905.70 = 16,646.30 : x
  2. Step 2: Convert to fraction form
    18,614.60/27,905.70 = 16,646.30/x
  3. Step 3: Cross multiply
    18,614.60x = 27,905.70 × 16,646.30
  4. Step 4: Simplify right side
    18,614.60x = 464,526,653.91
  5. Step 5: Solve for x
    x = 464,526,653.91/18,614.60
  6. Step 6: Final answer
    x = 24,954.96

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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.