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Finding the Fourth Proportional to 4,993.55, 7,478.65 and 3,946.53

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Solution

The fourth proportional to 4,993.55, 7,478.65 and 3,946.53 is: 5,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.55 : 7,478.65 = 3,946.53 : x
  2. Step 2: Convert to fraction form
    4,993.55/7,478.65 = 3,946.53/x
  3. Step 3: Cross multiply
    4,993.55x = 7,478.65 × 3,946.53
  4. Step 4: Simplify right side
    4,993.55x = 29,514,659.46
  5. Step 5: Solve for x
    x = 29,514,659.46/4,993.55
  6. Step 6: Final answer
    x = 5,910.56

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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.