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Finding the Fourth Proportional to 12,463.57, 18,695.21 and 3,103.67

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Solution

The fourth proportional to 12,463.57, 18,695.21 and 3,103.67 is: 4,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.57 : 18,695.21 = 3,103.67 : x
  2. Step 2: Convert to fraction form
    12,463.57/18,695.21 = 3,103.67/x
  3. Step 3: Cross multiply
    12,463.57x = 18,695.21 × 3,103.67
  4. Step 4: Simplify right side
    12,463.57x = 58,023,700.16
  5. Step 5: Solve for x
    x = 58,023,700.16/12,463.57
  6. Step 6: Final answer
    x = 4,655.46

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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.