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Finding the Fourth Proportional to 22,660.95, 33,986.29 and 8,615.99

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Solution

The fourth proportional to 22,660.95, 33,986.29 and 8,615.99 is: 12,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.95 : 33,986.29 = 8,615.99 : x
  2. Step 2: Convert to fraction form
    22,660.95/33,986.29 = 8,615.99/x
  3. Step 3: Cross multiply
    22,660.95x = 33,986.29 × 8,615.99
  4. Step 4: Simplify right side
    22,660.95x = 292,825,423.18
  5. Step 5: Solve for x
    x = 292,825,423.18/22,660.95
  6. Step 6: Final answer
    x = 12,922.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.