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Finding the Fourth Proportional to 6,487.43, 8,953.52 and 3,655.35

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Solution

The fourth proportional to 6,487.43, 8,953.52 and 3,655.35 is: 5,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.43 : 8,953.52 = 3,655.35 : x
  2. Step 2: Convert to fraction form
    6,487.43/8,953.52 = 3,655.35/x
  3. Step 3: Cross multiply
    6,487.43x = 8,953.52 × 3,655.35
  4. Step 4: Simplify right side
    6,487.43x = 32,728,231.06
  5. Step 5: Solve for x
    x = 32,728,231.06/6,487.43
  6. Step 6: Final answer
    x = 5,044.87

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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.