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Finding the Fourth Proportional to 4,761.84, 6,571 and 2,772.32

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Solution

The fourth proportional to 4,761.84, 6,571 and 2,772.32 is: 3,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.84 : 6,571 = 2,772.32 : x
  2. Step 2: Convert to fraction form
    4,761.84/6,571 = 2,772.32/x
  3. Step 3: Cross multiply
    4,761.84x = 6,571 × 2,772.32
  4. Step 4: Simplify right side
    4,761.84x = 18,216,914.72
  5. Step 5: Solve for x
    x = 18,216,914.72/4,761.84
  6. Step 6: Final answer
    x = 3,825.60

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1.5x scale

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.