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Finding the Fourth Proportional to 18,066.60, 27,108.54 and 14,178.60

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Solution

The fourth proportional to 18,066.60, 27,108.54 and 14,178.60 is: 21,274.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.60 : 27,108.54 = 14,178.60 : x
  2. Step 2: Convert to fraction form
    18,066.60/27,108.54 = 14,178.60/x
  3. Step 3: Cross multiply
    18,066.60x = 27,108.54 × 14,178.60
  4. Step 4: Simplify right side
    18,066.60x = 384,361,145.24
  5. Step 5: Solve for x
    x = 384,361,145.24/18,066.60
  6. Step 6: Final answer
    x = 21,274.68

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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.