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Finding the Fourth Proportional to 4,800.24, 7,201.32 and 1,878.96

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Solution

The fourth proportional to 4,800.24, 7,201.32 and 1,878.96 is: 2,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.24 : 7,201.32 = 1,878.96 : x
  2. Step 2: Convert to fraction form
    4,800.24/7,201.32 = 1,878.96/x
  3. Step 3: Cross multiply
    4,800.24x = 7,201.32 × 1,878.96
  4. Step 4: Simplify right side
    4,800.24x = 13,530,992.23
  5. Step 5: Solve for x
    x = 13,530,992.23/4,800.24
  6. Step 6: Final answer
    x = 2,818.82

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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.