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Finding the Fourth Proportional to 5,978.24, 8,970.24 and 2,515.04

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Solution

The fourth proportional to 5,978.24, 8,970.24 and 2,515.04 is: 3,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.24 : 8,970.24 = 2,515.04 : x
  2. Step 2: Convert to fraction form
    5,978.24/8,970.24 = 2,515.04/x
  3. Step 3: Cross multiply
    5,978.24x = 8,970.24 × 2,515.04
  4. Step 4: Simplify right side
    5,978.24x = 22,560,512.41
  5. Step 5: Solve for x
    x = 22,560,512.41/5,978.24
  6. Step 6: Final answer
    x = 3,773.77

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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.