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Finding the Fourth Proportional to 1,885.88, 2,600.81 and 1,177.79

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Solution

The fourth proportional to 1,885.88, 2,600.81 and 1,177.79 is: 1,624.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.88 : 2,600.81 = 1,177.79 : x
  2. Step 2: Convert to fraction form
    1,885.88/2,600.81 = 1,177.79/x
  3. Step 3: Cross multiply
    1,885.88x = 2,600.81 × 1,177.79
  4. Step 4: Simplify right side
    1,885.88x = 3,063,208.01
  5. Step 5: Solve for x
    x = 3,063,208.01/1,885.88
  6. Step 6: Final answer
    x = 1,624.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.