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Finding the Fourth Proportional to 3,860.04, 5,762.11 and 3,392.96

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Solution

The fourth proportional to 3,860.04, 5,762.11 and 3,392.96 is: 5,064.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.04 : 5,762.11 = 3,392.96 : x
  2. Step 2: Convert to fraction form
    3,860.04/5,762.11 = 3,392.96/x
  3. Step 3: Cross multiply
    3,860.04x = 5,762.11 × 3,392.96
  4. Step 4: Simplify right side
    3,860.04x = 19,550,608.75
  5. Step 5: Solve for x
    x = 19,550,608.75/3,860.04
  6. Step 6: Final answer
    x = 5,064.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.