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Finding the Fourth Proportional to 5,943.60, 8,920.80 and 3,997.17

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Solution

The fourth proportional to 5,943.60, 8,920.80 and 3,997.17 is: 5,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,943.60 : 8,920.80 = 3,997.17 : x
  2. Step 2: Convert to fraction form
    5,943.60/8,920.80 = 3,997.17/x
  3. Step 3: Cross multiply
    5,943.60x = 8,920.80 × 3,997.17
  4. Step 4: Simplify right side
    5,943.60x = 35,657,954.14
  5. Step 5: Solve for x
    x = 35,657,954.14/5,943.60
  6. Step 6: Final answer
    x = 5,999.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.