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Finding the Fourth Proportional to 8,753.58, 13,074.56 and 7,919.36

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Solution

The fourth proportional to 8,753.58, 13,074.56 and 7,919.36 is: 11,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.58 : 13,074.56 = 7,919.36 : x
  2. Step 2: Convert to fraction form
    8,753.58/13,074.56 = 7,919.36/x
  3. Step 3: Cross multiply
    8,753.58x = 13,074.56 × 7,919.36
  4. Step 4: Simplify right side
    8,753.58x = 103,542,098.97
  5. Step 5: Solve for x
    x = 103,542,098.97/8,753.58
  6. Step 6: Final answer
    x = 11,828.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.