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Finding the Fourth Proportional to 18,027.80, 27,051.88 and 9,707.64

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Solution

The fourth proportional to 18,027.80, 27,051.88 and 9,707.64 is: 14,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.80 : 27,051.88 = 9,707.64 : x
  2. Step 2: Convert to fraction form
    18,027.80/27,051.88 = 9,707.64/x
  3. Step 3: Cross multiply
    18,027.80x = 27,051.88 × 9,707.64
  4. Step 4: Simplify right side
    18,027.80x = 262,609,912.36
  5. Step 5: Solve for x
    x = 262,609,912.36/18,027.80
  6. Step 6: Final answer
    x = 14,566.94

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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.