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Finding the Fourth Proportional to 6,696.43, 9,240.79 and 3,671.49

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Solution

The fourth proportional to 6,696.43, 9,240.79 and 3,671.49 is: 5,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.43 : 9,240.79 = 3,671.49 : x
  2. Step 2: Convert to fraction form
    6,696.43/9,240.79 = 3,671.49/x
  3. Step 3: Cross multiply
    6,696.43x = 9,240.79 × 3,671.49
  4. Step 4: Simplify right side
    6,696.43x = 33,927,468.08
  5. Step 5: Solve for x
    x = 33,927,468.08/6,696.43
  6. Step 6: Final answer
    x = 5,066.50

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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.