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Finding the Fourth Proportional to 18,591.27, 27,886.90 and 4,740.27

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Solution

The fourth proportional to 18,591.27, 27,886.90 and 4,740.27 is: 7,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.27 : 27,886.90 = 4,740.27 : x
  2. Step 2: Convert to fraction form
    18,591.27/27,886.90 = 4,740.27/x
  3. Step 3: Cross multiply
    18,591.27x = 27,886.90 × 4,740.27
  4. Step 4: Simplify right side
    18,591.27x = 132,191,296.03
  5. Step 5: Solve for x
    x = 132,191,296.03/18,591.27
  6. Step 6: Final answer
    x = 7,110.40

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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.