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Finding the Fourth Proportional to 8,805.60, 13,201.10 and 4,427.96

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Solution

The fourth proportional to 8,805.60, 13,201.10 and 4,427.96 is: 6,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.60 : 13,201.10 = 4,427.96 : x
  2. Step 2: Convert to fraction form
    8,805.60/13,201.10 = 4,427.96/x
  3. Step 3: Cross multiply
    8,805.60x = 13,201.10 × 4,427.96
  4. Step 4: Simplify right side
    8,805.60x = 58,453,854.61
  5. Step 5: Solve for x
    x = 58,453,854.61/8,805.60
  6. Step 6: Final answer
    x = 6,638.26

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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.