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Finding the Fourth Proportional to 18,333.12, 27,499.68 and 4,482

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Solution

The fourth proportional to 18,333.12, 27,499.68 and 4,482 is: 6,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.12 : 27,499.68 = 4,482 : x
  2. Step 2: Convert to fraction form
    18,333.12/27,499.68 = 4,482/x
  3. Step 3: Cross multiply
    18,333.12x = 27,499.68 × 4,482
  4. Step 4: Simplify right side
    18,333.12x = 123,253,565.76
  5. Step 5: Solve for x
    x = 123,253,565.76/18,333.12
  6. Step 6: Final answer
    x = 6,723.00

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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.