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Finding the Fourth Proportional to 1,924.28, 2,884.02 and 999.30

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Solution

The fourth proportional to 1,924.28, 2,884.02 and 999.30 is: 1,497.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.28 : 2,884.02 = 999.30 : x
  2. Step 2: Convert to fraction form
    1,924.28/2,884.02 = 999.30/x
  3. Step 3: Cross multiply
    1,924.28x = 2,884.02 × 999.30
  4. Step 4: Simplify right side
    1,924.28x = 2,882,001.19
  5. Step 5: Solve for x
    x = 2,882,001.19/1,924.28
  6. Step 6: Final answer
    x = 1,497.71

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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.