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Finding the Fourth Proportional to 16,163.55, 22,300.51 and 9,788.11

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Solution

The fourth proportional to 16,163.55, 22,300.51 and 9,788.11 is: 13,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,163.55 : 22,300.51 = 9,788.11 : x
  2. Step 2: Convert to fraction form
    16,163.55/22,300.51 = 9,788.11/x
  3. Step 3: Cross multiply
    16,163.55x = 22,300.51 × 9,788.11
  4. Step 4: Simplify right side
    16,163.55x = 218,279,844.94
  5. Step 5: Solve for x
    x = 218,279,844.94/16,163.55
  6. Step 6: Final answer
    x = 13,504.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.