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Finding the Fourth Proportional to 15,991.60, 23,956.80 and 8,593.60

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Solution

The fourth proportional to 15,991.60, 23,956.80 and 8,593.60 is: 12,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.60 : 23,956.80 = 8,593.60 : x
  2. Step 2: Convert to fraction form
    15,991.60/23,956.80 = 8,593.60/x
  3. Step 3: Cross multiply
    15,991.60x = 23,956.80 × 8,593.60
  4. Step 4: Simplify right side
    15,991.60x = 205,875,156.48
  5. Step 5: Solve for x
    x = 205,875,156.48/15,991.60
  6. Step 6: Final answer
    x = 12,873.96

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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.