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Finding the Fourth Proportional to 18,808.92, 25,956.54 and 10,852.80

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Solution

The fourth proportional to 18,808.92, 25,956.54 and 10,852.80 is: 14,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.92 : 25,956.54 = 10,852.80 : x
  2. Step 2: Convert to fraction form
    18,808.92/25,956.54 = 10,852.80/x
  3. Step 3: Cross multiply
    18,808.92x = 25,956.54 × 10,852.80
  4. Step 4: Simplify right side
    18,808.92x = 281,701,137.31
  5. Step 5: Solve for x
    x = 281,701,137.31/18,808.92
  6. Step 6: Final answer
    x = 14,977.00

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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.