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Finding the Fourth Proportional to 18,367.12, 27,560.72 and 9,609.76

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Solution

The fourth proportional to 18,367.12, 27,560.72 and 9,609.76 is: 14,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.12 : 27,560.72 = 9,609.76 : x
  2. Step 2: Convert to fraction form
    18,367.12/27,560.72 = 9,609.76/x
  3. Step 3: Cross multiply
    18,367.12x = 27,560.72 × 9,609.76
  4. Step 4: Simplify right side
    18,367.12x = 264,851,904.63
  5. Step 5: Solve for x
    x = 264,851,904.63/18,367.12
  6. Step 6: Final answer
    x = 14,419.89

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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.