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Finding the Fourth Proportional to 3,530.10, 5,295.42 and 933

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Solution

The fourth proportional to 3,530.10, 5,295.42 and 933 is: 1,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.10 : 5,295.42 = 933 : x
  2. Step 2: Convert to fraction form
    3,530.10/5,295.42 = 933/x
  3. Step 3: Cross multiply
    3,530.10x = 5,295.42 × 933
  4. Step 4: Simplify right side
    3,530.10x = 4,940,626.86
  5. Step 5: Solve for x
    x = 4,940,626.86/3,530.10
  6. Step 6: Final answer
    x = 1,399.57

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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.