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Finding the Fourth Proportional to 1,647.99, 2,472.14 and 552.67

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Solution

The fourth proportional to 1,647.99, 2,472.14 and 552.67 is: 829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.99 : 2,472.14 = 552.67 : x
  2. Step 2: Convert to fraction form
    1,647.99/2,472.14 = 552.67/x
  3. Step 3: Cross multiply
    1,647.99x = 2,472.14 × 552.67
  4. Step 4: Simplify right side
    1,647.99x = 1,366,268.67
  5. Step 5: Solve for x
    x = 1,366,268.67/1,647.99
  6. Step 6: Final answer
    x = 829.05

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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.