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Finding the Fourth Proportional to 7,580.52, 10,449 and 5,057.64

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Solution

The fourth proportional to 7,580.52, 10,449 and 5,057.64 is: 6,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.52 : 10,449 = 5,057.64 : x
  2. Step 2: Convert to fraction form
    7,580.52/10,449 = 5,057.64/x
  3. Step 3: Cross multiply
    7,580.52x = 10,449 × 5,057.64
  4. Step 4: Simplify right side
    7,580.52x = 52,847,280.36
  5. Step 5: Solve for x
    x = 52,847,280.36/7,580.52
  6. Step 6: Final answer
    x = 6,971.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.