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Finding the Fourth Proportional to 6,705.68, 9,253.60 and 3,721.44

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Solution

The fourth proportional to 6,705.68, 9,253.60 and 3,721.44 is: 5,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,705.68 : 9,253.60 = 3,721.44 : x
  2. Step 2: Convert to fraction form
    6,705.68/9,253.60 = 3,721.44/x
  3. Step 3: Cross multiply
    6,705.68x = 9,253.60 × 3,721.44
  4. Step 4: Simplify right side
    6,705.68x = 34,436,717.18
  5. Step 5: Solve for x
    x = 34,436,717.18/6,705.68
  6. Step 6: Final answer
    x = 5,135.45

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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.