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Finding the Fourth Proportional to 7,579.84, 11,354.64 and 3,672.40

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Solution

The fourth proportional to 7,579.84, 11,354.64 and 3,672.40 is: 5,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.84 : 11,354.64 = 3,672.40 : x
  2. Step 2: Convert to fraction form
    7,579.84/11,354.64 = 3,672.40/x
  3. Step 3: Cross multiply
    7,579.84x = 11,354.64 × 3,672.40
  4. Step 4: Simplify right side
    7,579.84x = 41,698,779.94
  5. Step 5: Solve for x
    x = 41,698,779.94/7,579.84
  6. Step 6: Final answer
    x = 5,501.27

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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.