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Finding the Fourth Proportional to 5,451.60, 8,166.60 and 5,062.80

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Solution

The fourth proportional to 5,451.60, 8,166.60 and 5,062.80 is: 7,584.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.60 : 8,166.60 = 5,062.80 : x
  2. Step 2: Convert to fraction form
    5,451.60/8,166.60 = 5,062.80/x
  3. Step 3: Cross multiply
    5,451.60x = 8,166.60 × 5,062.80
  4. Step 4: Simplify right side
    5,451.60x = 41,345,862.48
  5. Step 5: Solve for x
    x = 41,345,862.48/5,451.60
  6. Step 6: Final answer
    x = 7,584.17

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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.