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Finding the Fourth Proportional to 8,453.90, 11,653.96 and 5,928.36

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Solution

The fourth proportional to 8,453.90, 11,653.96 and 5,928.36 is: 8,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.90 : 11,653.96 = 5,928.36 : x
  2. Step 2: Convert to fraction form
    8,453.90/11,653.96 = 5,928.36/x
  3. Step 3: Cross multiply
    8,453.90x = 11,653.96 × 5,928.36
  4. Step 4: Simplify right side
    8,453.90x = 69,088,870.31
  5. Step 5: Solve for x
    x = 69,088,870.31/8,453.90
  6. Step 6: Final answer
    x = 8,172.43

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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.