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Finding the Fourth Proportional to 3,530.84, 5,296.32 and 933.80

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Solution

The fourth proportional to 3,530.84, 5,296.32 and 933.80 is: 1,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.84 : 5,296.32 = 933.80 : x
  2. Step 2: Convert to fraction form
    3,530.84/5,296.32 = 933.80/x
  3. Step 3: Cross multiply
    3,530.84x = 5,296.32 × 933.80
  4. Step 4: Simplify right side
    3,530.84x = 4,945,677.13
  5. Step 5: Solve for x
    x = 4,945,677.13/3,530.84
  6. Step 6: Final answer
    x = 1,400.71

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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.