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Finding the Fourth Proportional to 5,720.63, 8,579.93 and 2,599.90

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Solution

The fourth proportional to 5,720.63, 8,579.93 and 2,599.90 is: 3,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.63 : 8,579.93 = 2,599.90 : x
  2. Step 2: Convert to fraction form
    5,720.63/8,579.93 = 2,599.90/x
  3. Step 3: Cross multiply
    5,720.63x = 8,579.93 × 2,599.90
  4. Step 4: Simplify right side
    5,720.63x = 22,306,925.56
  5. Step 5: Solve for x
    x = 22,306,925.56/5,720.63
  6. Step 6: Final answer
    x = 3,899.39

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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.