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Finding the Fourth Proportional to 8,527.55, 11,764.79 and 5,169.14

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Solution

The fourth proportional to 8,527.55, 11,764.79 and 5,169.14 is: 7,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.55 : 11,764.79 = 5,169.14 : x
  2. Step 2: Convert to fraction form
    8,527.55/11,764.79 = 5,169.14/x
  3. Step 3: Cross multiply
    8,527.55x = 11,764.79 × 5,169.14
  4. Step 4: Simplify right side
    8,527.55x = 60,813,869.53
  5. Step 5: Solve for x
    x = 60,813,869.53/8,527.55
  6. Step 6: Final answer
    x = 7,131.46

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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.