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Finding the Fourth Proportional to 5,381.95, 8,068.60 and 3,040.51

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Solution

The fourth proportional to 5,381.95, 8,068.60 and 3,040.51 is: 4,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.95 : 8,068.60 = 3,040.51 : x
  2. Step 2: Convert to fraction form
    5,381.95/8,068.60 = 3,040.51/x
  3. Step 3: Cross multiply
    5,381.95x = 8,068.60 × 3,040.51
  4. Step 4: Simplify right side
    5,381.95x = 24,532,658.99
  5. Step 5: Solve for x
    x = 24,532,658.99/5,381.95
  6. Step 6: Final answer
    x = 4,558.32

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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.