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Finding the Fourth Proportional to 5,862.63, 8,786.21 and 3,515.07

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Solution

The fourth proportional to 5,862.63, 8,786.21 and 3,515.07 is: 5,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,862.63 : 8,786.21 = 3,515.07 : x
  2. Step 2: Convert to fraction form
    5,862.63/8,786.21 = 3,515.07/x
  3. Step 3: Cross multiply
    5,862.63x = 8,786.21 × 3,515.07
  4. Step 4: Simplify right side
    5,862.63x = 30,884,125.61
  5. Step 5: Solve for x
    x = 30,884,125.61/5,862.63
  6. Step 6: Final answer
    x = 5,267.96

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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.