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Finding the Fourth Proportional to 6,630.32, 9,150.05 and 3,646.37

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Solution

The fourth proportional to 6,630.32, 9,150.05 and 3,646.37 is: 5,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.32 : 9,150.05 = 3,646.37 : x
  2. Step 2: Convert to fraction form
    6,630.32/9,150.05 = 3,646.37/x
  3. Step 3: Cross multiply
    6,630.32x = 9,150.05 × 3,646.37
  4. Step 4: Simplify right side
    6,630.32x = 33,364,467.82
  5. Step 5: Solve for x
    x = 33,364,467.82/6,630.32
  6. Step 6: Final answer
    x = 5,032.11

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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.