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Finding the Fourth Proportional to 7,580.80, 11,354.74 and 3,677

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Solution

The fourth proportional to 7,580.80, 11,354.74 and 3,677 is: 5,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.80 : 11,354.74 = 3,677 : x
  2. Step 2: Convert to fraction form
    7,580.80/11,354.74 = 3,677/x
  3. Step 3: Cross multiply
    7,580.80x = 11,354.74 × 3,677
  4. Step 4: Simplify right side
    7,580.80x = 41,751,378.98
  5. Step 5: Solve for x
    x = 41,751,378.98/7,580.80
  6. Step 6: Final answer
    x = 5,507.52

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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.