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Finding the Fourth Proportional to 12,845.60, 19,230.60 and 9,573.20

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Solution

The fourth proportional to 12,845.60, 19,230.60 and 9,573.20 is: 14,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.60 : 19,230.60 = 9,573.20 : x
  2. Step 2: Convert to fraction form
    12,845.60/19,230.60 = 9,573.20/x
  3. Step 3: Cross multiply
    12,845.60x = 19,230.60 × 9,573.20
  4. Step 4: Simplify right side
    12,845.60x = 184,098,379.92
  5. Step 5: Solve for x
    x = 184,098,379.92/12,845.60
  6. Step 6: Final answer
    x = 14,331.63

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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.