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Finding the Fourth Proportional to 22,295.52, 30,769.20 and 12,359.52

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Solution

The fourth proportional to 22,295.52, 30,769.20 and 12,359.52 is: 17,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.52 : 30,769.20 = 12,359.52 : x
  2. Step 2: Convert to fraction form
    22,295.52/30,769.20 = 12,359.52/x
  3. Step 3: Cross multiply
    22,295.52x = 30,769.20 × 12,359.52
  4. Step 4: Simplify right side
    22,295.52x = 380,292,542.78
  5. Step 5: Solve for x
    x = 380,292,542.78/22,295.52
  6. Step 6: Final answer
    x = 17,056.90

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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.