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Finding the Fourth Proportional to 5,751.12, 8,605.20 and 4,816.80

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Solution

The fourth proportional to 5,751.12, 8,605.20 and 4,816.80 is: 7,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.12 : 8,605.20 = 4,816.80 : x
  2. Step 2: Convert to fraction form
    5,751.12/8,605.20 = 4,816.80/x
  3. Step 3: Cross multiply
    5,751.12x = 8,605.20 × 4,816.80
  4. Step 4: Simplify right side
    5,751.12x = 41,449,527.36
  5. Step 5: Solve for x
    x = 41,449,527.36/5,751.12
  6. Step 6: Final answer
    x = 7,207.21

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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.