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Finding the Fourth Proportional to 8,361.76, 11,534.16 and 5,529.12

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Solution

The fourth proportional to 8,361.76, 11,534.16 and 5,529.12 is: 7,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.76 : 11,534.16 = 5,529.12 : x
  2. Step 2: Convert to fraction form
    8,361.76/11,534.16 = 5,529.12/x
  3. Step 3: Cross multiply
    8,361.76x = 11,534.16 × 5,529.12
  4. Step 4: Simplify right side
    8,361.76x = 63,773,754.74
  5. Step 5: Solve for x
    x = 63,773,754.74/8,361.76
  6. Step 6: Final answer
    x = 7,626.83

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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.