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Finding the Fourth Proportional to 5,749.21, 7,929.16 and 4,855.04

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Solution

The fourth proportional to 5,749.21, 7,929.16 and 4,855.04 is: 6,695.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749.21 : 7,929.16 = 4,855.04 : x
  2. Step 2: Convert to fraction form
    5,749.21/7,929.16 = 4,855.04/x
  3. Step 3: Cross multiply
    5,749.21x = 7,929.16 × 4,855.04
  4. Step 4: Simplify right side
    5,749.21x = 38,496,366.92
  5. Step 5: Solve for x
    x = 38,496,366.92/5,749.21
  6. Step 6: Final answer
    x = 6,695.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.