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Finding the Fourth Proportional to 5,646.86, 7,792.96 and 3,255.95

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Solution

The fourth proportional to 5,646.86, 7,792.96 and 3,255.95 is: 4,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.86 : 7,792.96 = 3,255.95 : x
  2. Step 2: Convert to fraction form
    5,646.86/7,792.96 = 3,255.95/x
  3. Step 3: Cross multiply
    5,646.86x = 7,792.96 × 3,255.95
  4. Step 4: Simplify right side
    5,646.86x = 25,373,461.72
  5. Step 5: Solve for x
    x = 25,373,461.72/5,646.86
  6. Step 6: Final answer
    x = 4,493.37

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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.