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Finding the Fourth Proportional to 18,460.87, 27,691.37 and 4,609.87

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Solution

The fourth proportional to 18,460.87, 27,691.37 and 4,609.87 is: 6,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.87 : 27,691.37 = 4,609.87 : x
  2. Step 2: Convert to fraction form
    18,460.87/27,691.37 = 4,609.87/x
  3. Step 3: Cross multiply
    18,460.87x = 27,691.37 × 4,609.87
  4. Step 4: Simplify right side
    18,460.87x = 127,653,615.82
  5. Step 5: Solve for x
    x = 127,653,615.82/18,460.87
  6. Step 6: Final answer
    x = 6,914.82

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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.