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Finding the Fourth Proportional to 6,705.41, 9,253.61 and 3,721.28

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Solution

The fourth proportional to 6,705.41, 9,253.61 and 3,721.28 is: 5,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,705.41 : 9,253.61 = 3,721.28 : x
  2. Step 2: Convert to fraction form
    6,705.41/9,253.61 = 3,721.28/x
  3. Step 3: Cross multiply
    6,705.41x = 9,253.61 × 3,721.28
  4. Step 4: Simplify right side
    6,705.41x = 34,435,208.95
  5. Step 5: Solve for x
    x = 34,435,208.95/6,705.41
  6. Step 6: Final answer
    x = 5,135.44

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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.