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Finding the Fourth Proportional to 14,597.20, 21,847.20 and 12,847.60

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Solution

The fourth proportional to 14,597.20, 21,847.20 and 12,847.60 is: 19,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,597.20 : 21,847.20 = 12,847.60 : x
  2. Step 2: Convert to fraction form
    14,597.20/21,847.20 = 12,847.60/x
  3. Step 3: Cross multiply
    14,597.20x = 21,847.20 × 12,847.60
  4. Step 4: Simplify right side
    14,597.20x = 280,684,086.72
  5. Step 5: Solve for x
    x = 280,684,086.72/14,597.20
  6. Step 6: Final answer
    x = 19,228.63

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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.