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Finding the Fourth Proportional to 2,027.05, 3,041.80 and 988.22

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Solution

The fourth proportional to 2,027.05, 3,041.80 and 988.22 is: 1,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.05 : 3,041.80 = 988.22 : x
  2. Step 2: Convert to fraction form
    2,027.05/3,041.80 = 988.22/x
  3. Step 3: Cross multiply
    2,027.05x = 3,041.80 × 988.22
  4. Step 4: Simplify right side
    2,027.05x = 3,005,972.73
  5. Step 5: Solve for x
    x = 3,005,972.73/2,027.05
  6. Step 6: Final answer
    x = 1,482.93

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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.