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Finding the Fourth Proportional to 18,051.40, 27,077.10 and 14,811.40

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Solution

The fourth proportional to 18,051.40, 27,077.10 and 14,811.40 is: 22,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.40 : 27,077.10 = 14,811.40 : x
  2. Step 2: Convert to fraction form
    18,051.40/27,077.10 = 14,811.40/x
  3. Step 3: Cross multiply
    18,051.40x = 27,077.10 × 14,811.40
  4. Step 4: Simplify right side
    18,051.40x = 401,049,758.94
  5. Step 5: Solve for x
    x = 401,049,758.94/18,051.40
  6. Step 6: Final answer
    x = 22,217.10

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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.