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Finding the Fourth Proportional to 4,803.12, 7,201.14 and 1,879.92

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Solution

The fourth proportional to 4,803.12, 7,201.14 and 1,879.92 is: 2,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.12 : 7,201.14 = 1,879.92 : x
  2. Step 2: Convert to fraction form
    4,803.12/7,201.14 = 1,879.92/x
  3. Step 3: Cross multiply
    4,803.12x = 7,201.14 × 1,879.92
  4. Step 4: Simplify right side
    4,803.12x = 13,537,567.11
  5. Step 5: Solve for x
    x = 13,537,567.11/4,803.12
  6. Step 6: Final answer
    x = 2,818.49

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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.