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Finding the Fourth Proportional to 8,906.58, 13,354.20 and 4,518

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Solution

The fourth proportional to 8,906.58, 13,354.20 and 4,518 is: 6,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.58 : 13,354.20 = 4,518 : x
  2. Step 2: Convert to fraction form
    8,906.58/13,354.20 = 4,518/x
  3. Step 3: Cross multiply
    8,906.58x = 13,354.20 × 4,518
  4. Step 4: Simplify right side
    8,906.58x = 60,334,275.60
  5. Step 5: Solve for x
    x = 60,334,275.60/8,906.58
  6. Step 6: Final answer
    x = 6,774.12

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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.