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Finding the Fourth Proportional to 3,921.82, 5,882.55 and 1,000.03

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Solution

The fourth proportional to 3,921.82, 5,882.55 and 1,000.03 is: 1,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.82 : 5,882.55 = 1,000.03 : x
  2. Step 2: Convert to fraction form
    3,921.82/5,882.55 = 1,000.03/x
  3. Step 3: Cross multiply
    3,921.82x = 5,882.55 × 1,000.03
  4. Step 4: Simplify right side
    3,921.82x = 5,882,726.48
  5. Step 5: Solve for x
    x = 5,882,726.48/3,921.82
  6. Step 6: Final answer
    x = 1,500.00

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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.