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Finding the Fourth Proportional to 6,347.91, 8,759.30 and 3,553.41

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Solution

The fourth proportional to 6,347.91, 8,759.30 and 3,553.41 is: 4,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.91 : 8,759.30 = 3,553.41 : x
  2. Step 2: Convert to fraction form
    6,347.91/8,759.30 = 3,553.41/x
  3. Step 3: Cross multiply
    6,347.91x = 8,759.30 × 3,553.41
  4. Step 4: Simplify right side
    6,347.91x = 31,125,366.45
  5. Step 5: Solve for x
    x = 31,125,366.45/6,347.91
  6. Step 6: Final answer
    x = 4,903.25

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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.