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Finding the Fourth Proportional to 22,365.94, 30,865.70 and 12,295.16

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Solution

The fourth proportional to 22,365.94, 30,865.70 and 12,295.16 is: 16,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,365.94 : 30,865.70 = 12,295.16 : x
  2. Step 2: Convert to fraction form
    22,365.94/30,865.70 = 12,295.16/x
  3. Step 3: Cross multiply
    22,365.94x = 30,865.70 × 12,295.16
  4. Step 4: Simplify right side
    22,365.94x = 379,498,720.01
  5. Step 5: Solve for x
    x = 379,498,720.01/22,365.94
  6. Step 6: Final answer
    x = 16,967.71

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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.