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Finding the Fourth Proportional to 12,648.70, 18,973.05 and 6,073.30

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Solution

The fourth proportional to 12,648.70, 18,973.05 and 6,073.30 is: 9,109.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.70 : 18,973.05 = 6,073.30 : x
  2. Step 2: Convert to fraction form
    12,648.70/18,973.05 = 6,073.30/x
  3. Step 3: Cross multiply
    12,648.70x = 18,973.05 × 6,073.30
  4. Step 4: Simplify right side
    12,648.70x = 115,229,024.57
  5. Step 5: Solve for x
    x = 115,229,024.57/12,648.70
  6. Step 6: Final answer
    x = 9,109.95

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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.