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Finding the Fourth Proportional to 3,613.35, 4,978.65 and 2,432.37

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Solution

The fourth proportional to 3,613.35, 4,978.65 and 2,432.37 is: 3,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.35 : 4,978.65 = 2,432.37 : x
  2. Step 2: Convert to fraction form
    3,613.35/4,978.65 = 2,432.37/x
  3. Step 3: Cross multiply
    3,613.35x = 4,978.65 × 2,432.37
  4. Step 4: Simplify right side
    3,613.35x = 12,109,918.90
  5. Step 5: Solve for x
    x = 12,109,918.90/3,613.35
  6. Step 6: Final answer
    x = 3,351.44

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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.