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Finding the Fourth Proportional to 3,673.16, 5,479.62 and 3,572.76

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Solution

The fourth proportional to 3,673.16, 5,479.62 and 3,572.76 is: 5,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.16 : 5,479.62 = 3,572.76 : x
  2. Step 2: Convert to fraction form
    3,673.16/5,479.62 = 3,572.76/x
  3. Step 3: Cross multiply
    3,673.16x = 5,479.62 × 3,572.76
  4. Step 4: Simplify right side
    3,673.16x = 19,577,367.15
  5. Step 5: Solve for x
    x = 19,577,367.15/3,673.16
  6. Step 6: Final answer
    x = 5,329.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.