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Finding the Fourth Proportional to 7,665.94, 11,490.74 and 4,371.94

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Solution

The fourth proportional to 7,665.94, 11,490.74 and 4,371.94 is: 6,553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.94 : 11,490.74 = 4,371.94 : x
  2. Step 2: Convert to fraction form
    7,665.94/11,490.74 = 4,371.94/x
  3. Step 3: Cross multiply
    7,665.94x = 11,490.74 × 4,371.94
  4. Step 4: Simplify right side
    7,665.94x = 50,236,825.84
  5. Step 5: Solve for x
    x = 50,236,825.84/7,665.94
  6. Step 6: Final answer
    x = 6,553.25

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1.5x scale

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.