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Finding the Fourth Proportional to 6,343.22, 8,754.16 and 3,655.28

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Solution

The fourth proportional to 6,343.22, 8,754.16 and 3,655.28 is: 5,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.22 : 8,754.16 = 3,655.28 : x
  2. Step 2: Convert to fraction form
    6,343.22/8,754.16 = 3,655.28/x
  3. Step 3: Cross multiply
    6,343.22x = 8,754.16 × 3,655.28
  4. Step 4: Simplify right side
    6,343.22x = 31,998,905.96
  5. Step 5: Solve for x
    x = 31,998,905.96/6,343.22
  6. Step 6: Final answer
    x = 5,044.58

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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.