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Finding the Fourth Proportional to 7,699.52, 11,552.04 and 2,505.40

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Solution

The fourth proportional to 7,699.52, 11,552.04 and 2,505.40 is: 3,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.52 : 11,552.04 = 2,505.40 : x
  2. Step 2: Convert to fraction form
    7,699.52/11,552.04 = 2,505.40/x
  3. Step 3: Cross multiply
    7,699.52x = 11,552.04 × 2,505.40
  4. Step 4: Simplify right side
    7,699.52x = 28,942,481.02
  5. Step 5: Solve for x
    x = 28,942,481.02/7,699.52
  6. Step 6: Final answer
    x = 3,759.00

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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.