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Finding the Fourth Proportional to 4,992.67, 7,488.96 and 1,914.67

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Solution

The fourth proportional to 4,992.67, 7,488.96 and 1,914.67 is: 2,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.67 : 7,488.96 = 1,914.67 : x
  2. Step 2: Convert to fraction form
    4,992.67/7,488.96 = 1,914.67/x
  3. Step 3: Cross multiply
    4,992.67x = 7,488.96 × 1,914.67
  4. Step 4: Simplify right side
    4,992.67x = 14,338,887.04
  5. Step 5: Solve for x
    x = 14,338,887.04/4,992.67
  6. Step 6: Final answer
    x = 2,871.99

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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.