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Finding the Fourth Proportional to 7,559.72, 11,344 and 3,176.84

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Solution

The fourth proportional to 7,559.72, 11,344 and 3,176.84 is: 4,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,559.72 : 11,344 = 3,176.84 : x
  2. Step 2: Convert to fraction form
    7,559.72/11,344 = 3,176.84/x
  3. Step 3: Cross multiply
    7,559.72x = 11,344 × 3,176.84
  4. Step 4: Simplify right side
    7,559.72x = 36,038,072.96
  5. Step 5: Solve for x
    x = 36,038,072.96/7,559.72
  6. Step 6: Final answer
    x = 4,767.12

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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.