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Finding the Fourth Proportional to 14,967.20, 22,475.10 and 8,406.20

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Solution

The fourth proportional to 14,967.20, 22,475.10 and 8,406.20 is: 12,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,967.20 : 22,475.10 = 8,406.20 : x
  2. Step 2: Convert to fraction form
    14,967.20/22,475.10 = 8,406.20/x
  3. Step 3: Cross multiply
    14,967.20x = 22,475.10 × 8,406.20
  4. Step 4: Simplify right side
    14,967.20x = 188,930,185.62
  5. Step 5: Solve for x
    x = 188,930,185.62/14,967.20
  6. Step 6: Final answer
    x = 12,622.95

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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.