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Finding the Fourth Proportional to 83,811, 125,724.06 and 21,482.04

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Solution

The fourth proportional to 83,811, 125,724.06 and 21,482.04 is: 32,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,811 : 125,724.06 = 21,482.04 : x
  2. Step 2: Convert to fraction form
    83,811/125,724.06 = 21,482.04/x
  3. Step 3: Cross multiply
    83,811x = 125,724.06 × 21,482.04
  4. Step 4: Simplify right side
    83,811x = 2,700,809,285.88
  5. Step 5: Solve for x
    x = 2,700,809,285.88/83,811
  6. Step 6: Final answer
    x = 32,225.00

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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.