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Finding the Fourth Proportional to 4,932.99, 7,385.13 and 2,587.43

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Solution

The fourth proportional to 4,932.99, 7,385.13 and 2,587.43 is: 3,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.99 : 7,385.13 = 2,587.43 : x
  2. Step 2: Convert to fraction form
    4,932.99/7,385.13 = 2,587.43/x
  3. Step 3: Cross multiply
    4,932.99x = 7,385.13 × 2,587.43
  4. Step 4: Simplify right side
    4,932.99x = 19,108,525.38
  5. Step 5: Solve for x
    x = 19,108,525.38/4,932.99
  6. Step 6: Final answer
    x = 3,873.62

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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.