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Finding the Fourth Proportional to 4,893.60, 7,341.18 and 1,605.90

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Solution

The fourth proportional to 4,893.60, 7,341.18 and 1,605.90 is: 2,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.60 : 7,341.18 = 1,605.90 : x
  2. Step 2: Convert to fraction form
    4,893.60/7,341.18 = 1,605.90/x
  3. Step 3: Cross multiply
    4,893.60x = 7,341.18 × 1,605.90
  4. Step 4: Simplify right side
    4,893.60x = 11,789,200.96
  5. Step 5: Solve for x
    x = 11,789,200.96/4,893.60
  6. Step 6: Final answer
    x = 2,409.11

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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.