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Finding the Fourth Proportional to 8,453.96, 12,705.54 and 4,074.48

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Solution

The fourth proportional to 8,453.96, 12,705.54 and 4,074.48 is: 6,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.96 : 12,705.54 = 4,074.48 : x
  2. Step 2: Convert to fraction form
    8,453.96/12,705.54 = 4,074.48/x
  3. Step 3: Cross multiply
    8,453.96x = 12,705.54 × 4,074.48
  4. Step 4: Simplify right side
    8,453.96x = 51,768,468.62
  5. Step 5: Solve for x
    x = 51,768,468.62/8,453.96
  6. Step 6: Final answer
    x = 6,123.58

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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.