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Finding the Fourth Proportional to 5,355.88, 8,032.20 and 1,607.92

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Solution

The fourth proportional to 5,355.88, 8,032.20 and 1,607.92 is: 2,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.88 : 8,032.20 = 1,607.92 : x
  2. Step 2: Convert to fraction form
    5,355.88/8,032.20 = 1,607.92/x
  3. Step 3: Cross multiply
    5,355.88x = 8,032.20 × 1,607.92
  4. Step 4: Simplify right side
    5,355.88x = 12,915,135.02
  5. Step 5: Solve for x
    x = 12,915,135.02/5,355.88
  6. Step 6: Final answer
    x = 2,411.39

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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.