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Finding the Fourth Proportional to 22,093.54, 30,488.84 and 13,140.84

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Solution

The fourth proportional to 22,093.54, 30,488.84 and 13,140.84 is: 18,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,093.54 : 30,488.84 = 13,140.84 : x
  2. Step 2: Convert to fraction form
    22,093.54/30,488.84 = 13,140.84/x
  3. Step 3: Cross multiply
    22,093.54x = 30,488.84 × 13,140.84
  4. Step 4: Simplify right side
    22,093.54x = 400,648,902.52
  5. Step 5: Solve for x
    x = 400,648,902.52/22,093.54
  6. Step 6: Final answer
    x = 18,134.21

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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.