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Finding the Fourth Proportional to 7,019.55, 9,686.84 and 3,832.94

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Solution

The fourth proportional to 7,019.55, 9,686.84 and 3,832.94 is: 5,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.55 : 9,686.84 = 3,832.94 : x
  2. Step 2: Convert to fraction form
    7,019.55/9,686.84 = 3,832.94/x
  3. Step 3: Cross multiply
    7,019.55x = 9,686.84 × 3,832.94
  4. Step 4: Simplify right side
    7,019.55x = 37,129,081.56
  5. Step 5: Solve for x
    x = 37,129,081.56/7,019.55
  6. Step 6: Final answer
    x = 5,289.38

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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.