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Finding the Fourth Proportional to 7,633.63, 11,455.31 and 7,571.13

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Solution

The fourth proportional to 7,633.63, 11,455.31 and 7,571.13 is: 11,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,633.63 : 11,455.31 = 7,571.13 : x
  2. Step 2: Convert to fraction form
    7,633.63/11,455.31 = 7,571.13/x
  3. Step 3: Cross multiply
    7,633.63x = 11,455.31 × 7,571.13
  4. Step 4: Simplify right side
    7,633.63x = 86,729,641.20
  5. Step 5: Solve for x
    x = 86,729,641.20/7,633.63
  6. Step 6: Final answer
    x = 11,361.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.