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Finding the Fourth Proportional to 22,357.99, 30,854.19 and 12,286.63

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Solution

The fourth proportional to 22,357.99, 30,854.19 and 12,286.63 is: 16,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,357.99 : 30,854.19 = 12,286.63 : x
  2. Step 2: Convert to fraction form
    22,357.99/30,854.19 = 12,286.63/x
  3. Step 3: Cross multiply
    22,357.99x = 30,854.19 × 12,286.63
  4. Step 4: Simplify right side
    22,357.99x = 379,094,016.48
  5. Step 5: Solve for x
    x = 379,094,016.48/22,357.99
  6. Step 6: Final answer
    x = 16,955.64

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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.