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Finding the Fourth Proportional to 6,482.43, 8,945.67 and 3,649.79

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Solution

The fourth proportional to 6,482.43, 8,945.67 and 3,649.79 is: 5,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482.43 : 8,945.67 = 3,649.79 : x
  2. Step 2: Convert to fraction form
    6,482.43/8,945.67 = 3,649.79/x
  3. Step 3: Cross multiply
    6,482.43x = 8,945.67 × 3,649.79
  4. Step 4: Simplify right side
    6,482.43x = 32,649,772.18
  5. Step 5: Solve for x
    x = 32,649,772.18/6,482.43
  6. Step 6: Final answer
    x = 5,036.66

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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.