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Finding the Fourth Proportional to 6,640.56, 9,957.96 and 2,256.84

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Solution

The fourth proportional to 6,640.56, 9,957.96 and 2,256.84 is: 3,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.56 : 9,957.96 = 2,256.84 : x
  2. Step 2: Convert to fraction form
    6,640.56/9,957.96 = 2,256.84/x
  3. Step 3: Cross multiply
    6,640.56x = 9,957.96 × 2,256.84
  4. Step 4: Simplify right side
    6,640.56x = 22,473,522.45
  5. Step 5: Solve for x
    x = 22,473,522.45/6,640.56
  6. Step 6: Final answer
    x = 3,384.28

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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.