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Finding the Fourth Proportional to 13,593.18, 20,355.93 and 8,648.22

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Solution

The fourth proportional to 13,593.18, 20,355.93 and 8,648.22 is: 12,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.18 : 20,355.93 = 8,648.22 : x
  2. Step 2: Convert to fraction form
    13,593.18/20,355.93 = 8,648.22/x
  3. Step 3: Cross multiply
    13,593.18x = 20,355.93 × 8,648.22
  4. Step 4: Simplify right side
    13,593.18x = 176,042,560.94
  5. Step 5: Solve for x
    x = 176,042,560.94/13,593.18
  6. Step 6: Final answer
    x = 12,950.80

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1.5x scale

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.