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Finding the Fourth Proportional to 8,355.94, 11,531.17 and 4,579.12

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Solution

The fourth proportional to 8,355.94, 11,531.17 and 4,579.12 is: 6,319.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.94 : 11,531.17 = 4,579.12 : x
  2. Step 2: Convert to fraction form
    8,355.94/11,531.17 = 4,579.12/x
  3. Step 3: Cross multiply
    8,355.94x = 11,531.17 × 4,579.12
  4. Step 4: Simplify right side
    8,355.94x = 52,802,611.17
  5. Step 5: Solve for x
    x = 52,802,611.17/8,355.94
  6. Step 6: Final answer
    x = 6,319.17

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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.