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Finding the Fourth Proportional to 8,236.65, 11,361.95 and 5,210.84

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Solution

The fourth proportional to 8,236.65, 11,361.95 and 5,210.84 is: 7,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.65 : 11,361.95 = 5,210.84 : x
  2. Step 2: Convert to fraction form
    8,236.65/11,361.95 = 5,210.84/x
  3. Step 3: Cross multiply
    8,236.65x = 11,361.95 × 5,210.84
  4. Step 4: Simplify right side
    8,236.65x = 59,205,325.43
  5. Step 5: Solve for x
    x = 59,205,325.43/8,236.65
  6. Step 6: Final answer
    x = 7,188.03

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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.