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Finding the Fourth Proportional to 22,092.55, 30,486.80 and 12,021.02

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Solution

The fourth proportional to 22,092.55, 30,486.80 and 12,021.02 is: 16,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,092.55 : 30,486.80 = 12,021.02 : x
  2. Step 2: Convert to fraction form
    22,092.55/30,486.80 = 12,021.02/x
  3. Step 3: Cross multiply
    22,092.55x = 30,486.80 × 12,021.02
  4. Step 4: Simplify right side
    22,092.55x = 366,482,432.54
  5. Step 5: Solve for x
    x = 366,482,432.54/22,092.55
  6. Step 6: Final answer
    x = 16,588.51

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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.