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Finding the Fourth Proportional to 2,841.56, 4,262.29 and 992.67

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Solution

The fourth proportional to 2,841.56, 4,262.29 and 992.67 is: 1,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.56 : 4,262.29 = 992.67 : x
  2. Step 2: Convert to fraction form
    2,841.56/4,262.29 = 992.67/x
  3. Step 3: Cross multiply
    2,841.56x = 4,262.29 × 992.67
  4. Step 4: Simplify right side
    2,841.56x = 4,231,028.95
  5. Step 5: Solve for x
    x = 4,231,028.95/2,841.56
  6. Step 6: Final answer
    x = 1,488.98

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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.