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Finding the Fourth Proportional to 6,409.13, 8,845.20 and 5,066.55

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Solution

The fourth proportional to 6,409.13, 8,845.20 and 5,066.55 is: 6,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.13 : 8,845.20 = 5,066.55 : x
  2. Step 2: Convert to fraction form
    6,409.13/8,845.20 = 5,066.55/x
  3. Step 3: Cross multiply
    6,409.13x = 8,845.20 × 5,066.55
  4. Step 4: Simplify right side
    6,409.13x = 44,814,648.06
  5. Step 5: Solve for x
    x = 44,814,648.06/6,409.13
  6. Step 6: Final answer
    x = 6,992.32

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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.