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Finding the Fourth Proportional to 8,338.44, 12,507.66 and 3,410.40

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Solution

The fourth proportional to 8,338.44, 12,507.66 and 3,410.40 is: 5,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.44 : 12,507.66 = 3,410.40 : x
  2. Step 2: Convert to fraction form
    8,338.44/12,507.66 = 3,410.40/x
  3. Step 3: Cross multiply
    8,338.44x = 12,507.66 × 3,410.40
  4. Step 4: Simplify right side
    8,338.44x = 42,656,123.66
  5. Step 5: Solve for x
    x = 42,656,123.66/8,338.44
  6. Step 6: Final answer
    x = 5,115.60

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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.