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Finding the Fourth Proportional to 12,417.88, 18,626.76 and 3,057.88

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Solution

The fourth proportional to 12,417.88, 18,626.76 and 3,057.88 is: 4,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.88 : 18,626.76 = 3,057.88 : x
  2. Step 2: Convert to fraction form
    12,417.88/18,626.76 = 3,057.88/x
  3. Step 3: Cross multiply
    12,417.88x = 18,626.76 × 3,057.88
  4. Step 4: Simplify right side
    12,417.88x = 56,958,396.87
  5. Step 5: Solve for x
    x = 56,958,396.87/12,417.88
  6. Step 6: Final answer
    x = 4,586.81

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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.