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Finding the Fourth Proportional to 8,606.58, 12,906.55 and 3,058.90

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Solution

The fourth proportional to 8,606.58, 12,906.55 and 3,058.90 is: 4,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.58 : 12,906.55 = 3,058.90 : x
  2. Step 2: Convert to fraction form
    8,606.58/12,906.55 = 3,058.90/x
  3. Step 3: Cross multiply
    8,606.58x = 12,906.55 × 3,058.90
  4. Step 4: Simplify right side
    8,606.58x = 39,479,845.80
  5. Step 5: Solve for x
    x = 39,479,845.80/8,606.58
  6. Step 6: Final answer
    x = 4,587.17

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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.