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Finding the Fourth Proportional to 5,723.70, 8,585.55 and 4,751.70

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Solution

The fourth proportional to 5,723.70, 8,585.55 and 4,751.70 is: 7,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,723.70 : 8,585.55 = 4,751.70 : x
  2. Step 2: Convert to fraction form
    5,723.70/8,585.55 = 4,751.70/x
  3. Step 3: Cross multiply
    5,723.70x = 8,585.55 × 4,751.70
  4. Step 4: Simplify right side
    5,723.70x = 40,795,957.94
  5. Step 5: Solve for x
    x = 40,795,957.94/5,723.70
  6. Step 6: Final answer
    x = 7,127.55

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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.