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Finding the Fourth Proportional to 5,990.09, 8,989.22 and 3,070.45

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Solution

The fourth proportional to 5,990.09, 8,989.22 and 3,070.45 is: 4,607.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.09 : 8,989.22 = 3,070.45 : x
  2. Step 2: Convert to fraction form
    5,990.09/8,989.22 = 3,070.45/x
  3. Step 3: Cross multiply
    5,990.09x = 8,989.22 × 3,070.45
  4. Step 4: Simplify right side
    5,990.09x = 27,600,935.75
  5. Step 5: Solve for x
    x = 27,600,935.75/5,990.09
  6. Step 6: Final answer
    x = 4,607.76

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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.