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Finding the Fourth Proportional to 23,409.60, 32,305.03 and 12,799.20

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Solution

The fourth proportional to 23,409.60, 32,305.03 and 12,799.20 is: 17,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,409.60 : 32,305.03 = 12,799.20 : x
  2. Step 2: Convert to fraction form
    23,409.60/32,305.03 = 12,799.20/x
  3. Step 3: Cross multiply
    23,409.60x = 32,305.03 × 12,799.20
  4. Step 4: Simplify right side
    23,409.60x = 413,478,539.98
  5. Step 5: Solve for x
    x = 413,478,539.98/23,409.60
  6. Step 6: Final answer
    x = 17,662.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.