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Finding the Fourth Proportional to 19,873.92, 29,816.04 and 8,783.04

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Solution

The fourth proportional to 19,873.92, 29,816.04 and 8,783.04 is: 13,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.92 : 29,816.04 = 8,783.04 : x
  2. Step 2: Convert to fraction form
    19,873.92/29,816.04 = 8,783.04/x
  3. Step 3: Cross multiply
    19,873.92x = 29,816.04 × 8,783.04
  4. Step 4: Simplify right side
    19,873.92x = 261,875,471.96
  5. Step 5: Solve for x
    x = 261,875,471.96/19,873.92
  6. Step 6: Final answer
    x = 13,176.84

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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.