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Finding the Fourth Proportional to 22,123.40, 30,530.80 and 12,052.40

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Solution

The fourth proportional to 22,123.40, 30,530.80 and 12,052.40 is: 16,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,123.40 : 30,530.80 = 12,052.40 : x
  2. Step 2: Convert to fraction form
    22,123.40/30,530.80 = 12,052.40/x
  3. Step 3: Cross multiply
    22,123.40x = 30,530.80 × 12,052.40
  4. Step 4: Simplify right side
    22,123.40x = 367,969,413.92
  5. Step 5: Solve for x
    x = 367,969,413.92/22,123.40
  6. Step 6: Final answer
    x = 16,632.59

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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.