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Finding the Fourth Proportional to 6,649.63, 9,176.43 and 3,665.41

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Solution

The fourth proportional to 6,649.63, 9,176.43 and 3,665.41 is: 5,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.63 : 9,176.43 = 3,665.41 : x
  2. Step 2: Convert to fraction form
    6,649.63/9,176.43 = 3,665.41/x
  3. Step 3: Cross multiply
    6,649.63x = 9,176.43 × 3,665.41
  4. Step 4: Simplify right side
    6,649.63x = 33,635,378.29
  5. Step 5: Solve for x
    x = 33,635,378.29/6,649.63
  6. Step 6: Final answer
    x = 5,058.23

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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.