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Finding the Fourth Proportional to 8,908.58, 13,376.36 and 7,074.56

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Solution

The fourth proportional to 8,908.58, 13,376.36 and 7,074.56 is: 10,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.58 : 13,376.36 = 7,074.56 : x
  2. Step 2: Convert to fraction form
    8,908.58/13,376.36 = 7,074.56/x
  3. Step 3: Cross multiply
    8,908.58x = 13,376.36 × 7,074.56
  4. Step 4: Simplify right side
    8,908.58x = 94,631,826.03
  5. Step 5: Solve for x
    x = 94,631,826.03/8,908.58
  6. Step 6: Final answer
    x = 10,622.55

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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.