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Finding the Fourth Proportional to 3,681.95, 5,514.83 and 3,393.87

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Solution

The fourth proportional to 3,681.95, 5,514.83 and 3,393.87 is: 5,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.95 : 5,514.83 = 3,393.87 : x
  2. Step 2: Convert to fraction form
    3,681.95/5,514.83 = 3,393.87/x
  3. Step 3: Cross multiply
    3,681.95x = 5,514.83 × 3,393.87
  4. Step 4: Simplify right side
    3,681.95x = 18,716,624.58
  5. Step 5: Solve for x
    x = 18,716,624.58/3,681.95
  6. Step 6: Final answer
    x = 5,083.35

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1.5x scale

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.