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Finding the Fourth Proportional to 3,779.86, 5,672 and 1,588.42

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Solution

The fourth proportional to 3,779.86, 5,672 and 1,588.42 is: 2,383.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.86 : 5,672 = 1,588.42 : x
  2. Step 2: Convert to fraction form
    3,779.86/5,672 = 1,588.42/x
  3. Step 3: Cross multiply
    3,779.86x = 5,672 × 1,588.42
  4. Step 4: Simplify right side
    3,779.86x = 9,009,518.24
  5. Step 5: Solve for x
    x = 9,009,518.24/3,779.86
  6. Step 6: Final answer
    x = 2,383.56

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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.